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Autoflower Week-by-Week Pictures Timeline: Signs of Healthy Growth and Problems to Spot Early

Autoflower cannabis plants can grow fast, and they can change a lot in just a few days. That is why a week-by-week picture timeline is so useful. It gives you a simple way to compare what you see in front of you with what is common for that stage of growth. When you take pictures every week (or even every few days), you create a “visual record” of your plant. This record helps you notice small changes early, before they become big problems. It also helps you avoid guessing. Instead of relying only on memory, you can look back at your photos and see what actually changed.

When people search for “autoflower week-by-week pictures,” they usually want clear visual checkpoints. They want to know what a healthy plant should look like in Week 1, Week 2, Week 3, and so on. These checkpoints are not meant to be strict rules. They are more like guideposts. Two healthy plants can look different in the same week. One may be shorter with tight spacing between leaves. Another may be taller with longer spacing. Both can still be normal. The goal of a timeline is not to force your plant to match an exact picture. The goal is to help you recognize the main signs that your plant is doing well, and to help you spot warning signs early.

Autoflowers are different from photoperiod plants because they do not need a change in light schedule to start flowering. They begin flowering based mostly on age, not on how many hours of darkness they get. Because of this, autoflowers often have a shorter window for recovery if something goes wrong. If a photoperiod plant gets stressed, it can often bounce back before you flip it to flower. An autoflower may start flowering even if it is still recovering. That is one reason early problem spotting matters so much. Pictures can help you catch issues in the seedling and early vegetative stage, when fixing them is usually easier.

It is also important to know that autoflowers can look “ahead” or “behind” schedule. This can happen for many normal reasons. Genetics is a big one. Some strains are naturally small and quick. Others are larger and take longer. Pot size can also change the timeline. A small pot may limit root space sooner, which can slow growth. A bigger pot often supports stronger growth, but it still depends on how you water and feed. Light strength and distance matter too. If the light is too weak, plants may stretch and grow thin. If the light is too strong, leaves may taco, curl, or fade. Stress is another major factor. Overwatering, transplant shock, rough training, or big swings in temperature can slow an autoflower down. So, if your Week 3 plant looks like someone else’s Week 2 plant, that does not automatically mean failure. It simply means you should look at the full set of signs, not just the week number.

That leads to a key point: you should compare your plant to the dominant signs, not one single symptom. For example, one yellow leaf does not always mean a deficiency. It could be an old leaf aging out, or it could be mild stress from watering. But if you see several lower leaves turning yellow, and the plant looks pale overall, and growth has slowed, that pattern is more meaningful. In the same way, droopy leaves do not always mean underwatering. Overwatering can also cause droop. The difference often shows up in the soil and in the “feel” of the leaves in pictures. Overwatered leaves may look heavy and thick, and the soil may look dark and wet. Underwatered leaves often look limp, and the soil may look dry and pulled away from the pot edges. When you focus on patterns, you make better decisions.

A week-by-week picture timeline also helps you stay calm. Many growers panic when they see a change, especially new growers. But plants change naturally as they grow. New growth is often lighter green. Older leaves can sometimes look less perfect. During flower, some fading can be normal, especially near the end. Pictures help you tell the difference between normal change and a real issue. They also help you avoid “overcorrecting,” which is one of the most common causes of bigger problems. Overcorrecting means making too many changes too fast. For example, you might think the plant is hungry and add more nutrients, but the real issue might be overwatering or pH. Or you might flush when the plant is simply adjusting to stronger light. Fast, large changes can shock autoflowers. Small, careful steps usually work better.

In this article, you will use pictures as a tool for better judgment. You will learn what healthy growth often looks like from Week 1 through harvest, and what problems tend to show up at each stage. You will also learn why timing can vary, and how to make smart comparisons without forcing your plant into a perfect schedule. The main idea is simple: take clear photos, watch for patterns, and make gentle corrections when needed. When you do that, you can catch issues early, protect growth during the short autoflower timeline, and finish with a healthier plant and better results.

Photo Checklist: How to Take and Compare Week-by-Week Pictures

Taking pictures each week is one of the easiest ways to learn what “normal” looks like for an autoflower. Photos help you notice changes you might miss day to day. They also help you spot problems early, when they are easier to fix. The goal is not to take perfect photos. The goal is to take clear, repeatable photos that you can compare from week to week.

Take the same four angles every time

If you only take random pictures, it is hard to compare weeks. Use the same angles each time so you can see real progress.

Whole plant, front view (full-body photo).
Stand back so you can see the entire plant and the pot. This photo helps you track overall size, plant shape, and how fast it is growing. It also helps you see if the plant is leaning or stretching.

Side profile (from the side).
A side photo makes it easier to judge height and branching. It also shows if the plant is getting tall and thin (stretching) or staying compact. Side photos are very useful during the transition to flower, when the plant may “stretch” quickly.

Top-down canopy (looking straight down).
This angle shows how evenly the plant is growing. It helps you see leaf shape, leaf color, and how full the canopy is. It also helps you spot twisted leaves, leaf taco shapes, or pale new growth near the top.

Close-ups (problem-solving photos).
Take close-ups of:

  • The newest growth at the top.
  • A few older fan leaves (especially lower leaves).
  • Bud sites once flowering starts.

Close-ups are best for spotting early pests, tiny spots, edge burn, or powdery patches. If you see a problem, take a close-up of the worst leaf and a close-up of a normal leaf for comparison.

Include key details in the frame

A photo is more useful when it includes context. Small details can explain big differences.

Put something in the photo for scale.
Use a ruler, tape measure, or a common object you always have (like the same marker or lighter). Place it next to the pot or next to the plant. This helps you track growth without guessing.

Show the pot size and soil surface.
Make sure the pot is visible. Pot size matters a lot for autoflowers. A small pot can limit root growth and slow the plant. Also include the top of the soil in at least one photo. The surface can show clues, like dryness, crusting from salts, or algae from staying too wet.

Label your photos.
Use a simple label like:

  • “Week 3, Day 18”
  • “Week 6, Day 41”
    You can write it on a sticky note and put it near the pot, or you can rename the file after you take it. Labels stop confusion later, especially near harvest when changes happen fast.

Use lighting that shows true color

Bad lighting can hide problems or make them look worse than they are. If your grow light is purple or very blue, it can distort leaf color in photos.

Best option: use white light for photos.
If possible, take photos with a white light source. Many growers use a phone flashlight or a room light. You can also take pictures with the grow light off for a minute and use another light. Just do not stress the plant with long dark periods. Keep it quick.

Avoid harsh glare and deep shadows.
Glare can make leaves look shiny and “fake healthy,” while shadows can hide yellowing or spotting. Stand so the light hits the plant evenly. If your phone has a focus lock, use it so the image is sharp.

Keep distance and camera settings consistent.
Try to take photos from the same distance each week. Consistency matters more than quality. If your phone has a “pro” mode, you can set the same brightness and white balance each time. If not, that is fine. Just aim for clear, sharp images.

Track the same growth signs every week

Pictures work best when you know what to look for. Each week, try to record a few simple signs.

Height and width.
Height shows stretch and overall growth. Width shows branching and canopy development.

Node count and spacing.
Nodes are the points where leaves and branches form on the stem. Tight node spacing often means good light and steady growth. Wide spacing can be a sign of low light or early stretching.

Leaf color and shine.
Healthy leaves are usually an even green with a natural look. Very dark green can mean too much nitrogen. Very pale green can mean hunger, poor root function, or a pH problem.

Leaf shape and posture.
Leaf posture tells you how the plant feels.

  • Leaves gently angled upward can be a good sign.
  • Drooping leaves may suggest overwatering, underwatering, or stress.
  • “Clawing” (tips curling down like a hook) can point to too much nitrogen or overwatering.
  • “Taco” leaves (edges curling up) can point to heat or light stress.

New growth speed.
Compare the top growth each week. Autoflowers often grow fast in early veg and during the stretch into flower. If new growth slows sharply, your photos can help you see when it started.

Bud development once flowering starts.
In flower, track:

  • Number of bud sites.
  • Bud size and density.
  • Trichome build-up (the “frost” look).
  • Pistil color changes (white to darker shades over time).

Use photos to compare, not to panic

A single bad leaf in a close-up can look scary. That is why you should use multiple photos and patterns. Ask yourself:

  • Is the issue only on old leaves, only on new leaves, or everywhere?
  • Is it worse at the top (light/heat) or worse at the bottom (feeding or root issues)?
  • Did the change happen slowly over weeks, or suddenly in a few days?

When you compare week-by-week pictures, you will often see the real story. Small issues usually appear first as tiny changes. Catching them early can prevent bigger problems later.

To get useful week-by-week autoflower pictures, keep it simple and consistent. Take the same four angles every time, include a size reference, and label each photo clearly. Use lighting that shows true color, and track the same growth signs each week, like node spacing, leaf posture, and bud development. When you compare photos over time, you can spot healthy progress and catch problems early—before they slow your plant down.

Week 1 (Days 1–7): Germination to Seedling Establishment — “First True Leaves”

Week 1 is about one thing: getting a small plant to survive and start growing roots. In pictures, a healthy Week 1 autoflower looks simple, but the details matter. Because autoflowers grow on a set clock, problems in the first week can slow the plant down and reduce the final size. The good news is that most Week 1 issues are easy to spot early if you know what to look for.

What “healthy” looks like in Week 1 pictures

In the first days, you will usually see the seedling push up and open two smooth seed leaves called cotyledons. In photos, healthy cotyledons look even, flat, and firm. They are usually a lighter green than older leaves later in life. They should not be twisted, spotted, or folded.

After the cotyledons open, the plant starts making its first “true leaves.” True leaves have the classic cannabis leaf shape, even if the first set has only one or three fingers. In a healthy Week 1 photo, those first true leaves look fresh and clean. The edges are smooth, and the leaf surface looks flat. A slight upward angle is normal when the plant is happy with the light.

The stem should be able to hold the plant up. It does not need to be thick yet, but it should not look like a thin string. If you look at a side photo, a healthy seedling stands upright without leaning hard to one side. A tiny lean is normal if the plant is turning toward the light.

The color in Week 1 is important, but do not panic if new growth is a bit lighter. New leaves often start light green and darken as they mature. What you do not want to see in pictures is strong yellowing, brown spots, or a “burnt” look on the tips.

The most common Week 1 problem: stretching

Stretching is one of the easiest Week 1 problems to catch in pictures. It looks like a tall, skinny stem with a small top. Sometimes the seedling looks like it is “reaching” up. This usually happens when light is too weak or too far away.

In photos, a stretched seedling often has a long space between the soil line and the first leaves. The stem may look thin and unstable, and it may bend. If you see this, the goal is to give stronger, better-positioned light and gentle airflow. Many growers also add a little extra medium around the base of the stem to support it. The key is to act early, before the stem becomes too weak.

Overwatering signs you can spot in photos

Overwatering is another common Week 1 issue. New growers often think seedlings need a lot of water. But in Week 1, the root system is tiny. If the medium stays soaked, roots can struggle to get oxygen.

In pictures, overwatering often shows as droopy leaves that look heavy and limp. The cotyledons and early true leaves may hang down instead of sitting flat. The surface of the medium may look dark and wet all the time. Sometimes you will also see a slow or “stuck” seedling that does not change much from day to day.

A simple fix is to water less often and use small amounts. Instead of soaking the whole pot, moisten a small area around the seedling, then wait until the top layer dries a bit. You want a cycle of wet and slightly dry, not constant wet.

Underwatering: what it looks like

Underwatering can happen too, especially if the air is very dry or the light is strong. In photos, an underwatered seedling may look thin and tired. Leaves can droop, but the medium often looks dry, pale, and dusty. The seedling might also look “smaller than it should” for its age.

The fix is not to flood the pot. Instead, give a careful watering that moistens the root zone, then keep a steady routine. Week 1 is about consistency.

“Helmet head” and stuck seed shells

Sometimes the seed shell stays stuck on the seedling, or the cotyledons do not open fully. In pictures, this looks like a small cap on the top of the plant, or leaves that look trapped. This is often called “helmet head.”

This problem is usually linked to low humidity at the wrong time. A gentle approach works best. A little extra humidity can soften the shell so it can fall off on its own. Avoid pulling hard, because the seedling is fragile. If you do anything hands-on, be slow and careful.

Why airflow and environment matter in Week 1

Week 1 photos can also show environment problems. If the seedling looks like it is “canoeing” (edges curling up) or looks dry and stressed, the air may be too hot or too dry. If it looks slow and weak, the area may be too cold, especially at the root zone.

Gentle airflow is helpful because it strengthens the stem. In pictures, a seedling that gets light airflow often looks sturdier and more upright. The airflow should be mild, not strong enough to push the plant over.

In Week 1, a healthy autoflower seedling has open cotyledons, the first true leaves starting, and a short, stable stem. The biggest problems you can spot early in photos are stretching, overwatering droop, and helmet head. Focus on steady light, careful watering, and a stable environment. If you keep Week 1 clean and calm, the plant is set up for faster growth in Week 2 and Week 3.

Week 2 (Days 8–14): Early Vegetative Growth — Rooting and Node Building

Week 2 is when an autoflower seedling starts acting like a real plant. The main job this week is root building. When roots spread and thicken, the plant can drink and eat better. That is what powers faster leaf growth in the next weeks. Because autoflowers grow on a set timeline, a strong Week 2 matters. If the plant gets stressed here, it may stay small and still move into flower later.

Healthy picture signs

In week-by-week pictures, a healthy Week 2 autoflower usually shows these signs:

  • More true leaves: You should see at least two sets of true leaves, and many plants show three sets by the end of the week. True leaves have the classic cannabis shape.
  • Tighter node spacing: A “node” is the spot where leaves and branches come out of the main stem. In photos, healthy plants often have short spaces between nodes. This usually means the light level is good and the plant is not stretching.
  • A thicker stem: The stem should look stronger and less skinny than Week 1. A thicker stem is a common sign the roots are working well.
  • Leaves that look active: Many growers describe healthy leaves as “praying.” In pictures, this means the leaves angle slightly upward instead of hanging down. It is not a perfect test, but it can be a good sign when other signs also look healthy.
  • Even green color: Most of the plant should look medium green. New growth can be a little lighter. That is normal, as long as it is not pale yellow.

If your pictures show steady change every few days, that is also a good sign. Week 2 growth is not always huge, but it should be noticeable.

Common early issues you can spot from photos

Week 2 is also when many problems first become clear. Photos help because they let you compare changes over time.

Pale new growth (too light or “washed out”)

If the newest leaves look very light green, or almost yellow, the plant may be stressed. Common causes include:

  • Light too strong or too close: Bright light can make new growth look pale, especially if leaves also look slightly raised at the edges.
  • Early nutrient imbalance: If you are feeding too early or the mix is too strong, the plant can struggle to take up nutrients correctly.
  • pH issues: In soil or coco, wrong pH can block nutrients. In pictures, this can look like weak color and slow growth.

What to do: If light is intense, raise it or lower the power a little. If you started nutrients, reduce the strength. If you suspect pH problems, check your water and your run-off (if you measure it), then adjust carefully.

Twisting leaves or odd leaf shapes

Leaves may look curled, twisted, or slightly deformed. This often happens when the environment changes too fast.

Common causes include:

  • Heat swings: Too warm during the day and too cool at night can stress growth.
  • Low humidity: Dry air can make leaf edges curl and new growth look tight.
  • Strong airflow: A fan blowing directly on the plant can dry the leaves.

What to do: Aim for steady conditions. Keep airflow gentle and indirect. Try to keep humidity higher in early growth, then lower it later in flower.

Slow growth and tiny plant size

If week-by-week pictures show little change from Day 8 to Day 14, focus on roots and watering first.

Common causes:

  • Overwatering: The top of the soil may look wet often, and leaves can droop. Overwatering reduces oxygen in the root zone.
  • Cold roots: Even if the room is warm, a cold floor or cold water can slow roots.
  • Compacted or poor-draining medium: If the soil is dense and holds water too long, roots may struggle.

What to do: Let the medium dry more between waterings. Use smaller amounts of water at a time, but water evenly around the plant. Keep the root zone warm, and make sure the container drains well.

Simple checkpoints: pot size, drainage, and transplant stress

Autoflowers can be sensitive to stress because they do not wait for you to “fix it.” Many growers start autos in their final pot to avoid transplant shock.

  • Pot size matters: A very small pot can limit roots and keep the plant small. Many autos do well in medium to large pots, as long as drainage is good.
  • Drainage is non-negotiable: In photos, if you often see dark, wet soil and drooping leaves, drainage may be poor or watering may be too frequent. Make sure there are enough holes and the pot is not sitting in runoff.
  • Transplant stress can slow Week 2: If you transplanted, the plant may pause for a few days. In pictures, you may see growth slow down, and leaves may droop slightly. Gentle watering and stable conditions help it recover.

How to photograph Week 2 so problems show clearly

To make Week 2 pictures more useful:

  • Take a top-down photo to show leaf color and shape.
  • Take a side photo to show stem thickness and spacing between nodes.
  • Use neutral white light for photos, not purple grow light.
  • Take photos on the same day each week, and label them “Week 2, Day __.”

Week 2 is about building a strong base. In pictures, a healthy autoflower will show more true leaves, tighter node spacing, and a thicker stem. If you see pale new growth, twisting leaves, or slow progress, check light strength, watering habits, and the root zone first. Keep conditions steady, avoid strong feeding too early, and focus on good drainage. When Week 2 goes well, the plant is set up for the fast growth that usually follows in Week 3.

Week 3 (Days 15–21): Vegetative Push — “Fast Growth Window”

Week 3 is often the first week where an autoflower starts to look like a “real plant” in pictures. You may notice clear changes from one day to the next. This is why many growers call Week 3 the fast growth window. The roots are expanding quickly, and the plant is building more leaves and branches. If something is off in Week 3, it will usually show in photos early. Catching it now can prevent bigger problems later.

Healthy picture signs

In healthy Week 3 pictures, the plant usually looks fuller and more confident than it did in Week 2. The stem should look thicker, not thin and weak. The plant should stand up on its own without leaning. The leaves should look firm, not limp. You may also see side branches beginning to form at the nodes (the points where leaves meet the main stem).

A big sign of healthy growth is steady leaf expansion. The leaves should be growing larger, and you should see new sets of leaves coming from the top. Many healthy plants show leaves that angle slightly upward toward the light. Some growers call this “praying.” It is not a perfect test, but in photos it often means the plant feels comfortable with light and environment.

Another healthy sign is balanced node spacing. Node spacing is the distance between sets of leaves on the main stem. In Week 3, most autoflowers show moderate spacing. If the spacing is very wide, the plant may be stretching. If it is extremely tight, the light may be too intense or the plant may be stressed. In pictures, you want to see a compact plant that still has room for airflow.

Color matters too. Healthy Week 3 leaves are usually a medium green. New growth at the very top may look slightly lighter, which is normal. What you do not want is pale yellow new growth, very dark glossy leaves, or random spots and streaks.

Problems you can catch from photos

Week 3 is also when common problems begin to show clear patterns. The key is to look for a pattern across several leaves, not a single “ugly leaf.”

Clawing dark leaves (too much nitrogen or overwatering).
In photos, “clawing” looks like leaves that curl down at the tips, like a talon. The leaves may also look darker than normal, and sometimes slightly shiny. This can happen if the plant is getting too much nitrogen, especially in a rich soil or strong feeding plan. It can also happen if the roots are staying too wet. Overwatering reduces oxygen in the root zone, and the plant reacts by drooping or clawing. If you see clawing and the soil looks wet often, watering is a likely cause.

Leaf taco or canoeing (heat or light stress).
“Tacoing” means the leaf edges curl up, forming a shallow U shape, like a taco shell. In Week 3 photos, tacoing is often strongest on the top leaves closest to the light. This is common when the light is too intense, too close, or when the canopy temperature is too high. It can also happen when humidity is very low and the plant is losing water too fast. If the top leaves look curled up but the lower leaves look fine, think light and heat first.

Spots or speckling (early pest signs).
Tiny pale dots or “stippling” can be an early sign of pests like spider mites or thrips. In pictures, it can look like light freckles spread across the leaf surface. It may be worse on older leaves, and it can spread quickly. You should also check the underside of leaves. If you see tiny moving dots, very small black specks, or silvery scratch-like marks, pests are possible. Photos taken close-up in good lighting are very helpful here.

Care focus: low-stress training options that suit autoflowers

Week 3 is the time many people think about shaping the plant. With autoflowers, the goal is gentle help, not heavy stress. Autos have a set life clock. If you shock the plant, it may not have enough time to recover and still yield well.

A safe, low-stress option is leaf tucking. In pictures, you might notice a big fan leaf blocking a lower branch. Instead of cutting the leaf, you can tuck it behind the branch or under nearby growth. This helps light reach bud sites and improves airflow.

Another low-stress method is light bending (a gentle form of LST). You can slowly bend the main stem a little to open the center of the plant. This should be done carefully and gradually. In photos, a good result looks like a wider plant with more even top growth, not a snapped stem or a plant that looks “flattened.”

Avoid aggressive topping or heavy pruning in Week 3 unless you are very experienced and the plant is clearly thriving. Many autoflowers do not respond well to major cuts, and Week 3 is often close to the transition into pre-flower.

How to judge progress with pictures

To make Week 3 photos useful, take the same shots each time:

  • A full plant photo from the side (shows height and structure).
  • A top-down photo (shows canopy shape and leaf health).
  • A close-up of the newest growth (shows color and stress signs).
  • A close-up of one older fan leaf (shows patterns like spots or burn).

If you can, include a small ruler or a common object for scale. The goal is not to hit a perfect size. The goal is to see steady progress and catch changes early.

Week 3 is a major growth week for autoflowers. Healthy plants show fast leaf expansion, a thicker stem, balanced node spacing, and steady green color. Photos can help you spot problems early, like dark clawing leaves (often nitrogen or watering issues), tacoing leaves (often heat or light stress), and speckling (possible pests). Keep training gentle in this week. Leaf tucking and light bending are usually safer than heavy cutting. If you take consistent pictures from the same angles, you will notice issues sooner and correct them with smaller, safer changes.

Week 4 Days 22–28: Transition Week — Pre-Flower Often Starts Here

Week 4 is a key turning point for many autoflowers. In week 1 and week 2, the plant focuses on roots and basic leaf growth. In week 3, it often speeds up. By week 4, many autos start to “transition.” This means the plant begins to shift from pure vegetative growth to early flowering behavior. Some plants show pre-flower signs this week. Others may not show them until week 5. Both can be normal, so the goal is to look at the whole plant, not just one detail.

Healthy picture signs to look for

When an autoflower is healthy in week 4, your photos usually show a stronger structure than earlier weeks. The main stem looks thicker and can support new growth. Side branches become more obvious, and the plant looks fuller. You may also notice the space between nodes (the points where leaves and branches connect to the stem) stays fairly tight. Tight spacing often means your light level and environment are working well.

Color is another important clue in pictures. Healthy fan leaves are usually medium green. New growth at the top can look a bit lighter, which is normal because it is fresh. Leaves should look smooth and open, not twisted or clawed. Many healthy plants in week 4 also show “praying” leaves. This is when leaves angle slightly upward, like they are reaching for the light. It can be a sign the plant is comfortable with its light and moisture.

Growth rate matters too. In week 4, many autos grow faster, and you might see a small “stretch” starting. Stretch is when the plant gains height more quickly. A little stretch is normal. A big stretch with very long, thin stems can mean the light is too weak or too far away.

What pre-flowers look like in pictures

Pre-flowers usually appear at the nodes, where a branch meets the main stem. In clear photos, you may see tiny new growth that looks different from a normal leaf. For female plants, pre-flowers often show a small teardrop-shaped calyx with one or two fine white hairs. These hairs are pistils. They look like tiny white threads.

It helps to take close-up photos of the upper and middle nodes. Do not only look at the very top, because the top is busy with new leaves. The node areas are easier to check from the side. Use steady lighting so you can see the details. If you cannot tell in photos yet, do not panic. Some autos show pre-flowers later.

If pre-flower has not started yet

If your plant does not show pre-flower signs in week 4, it does not always mean something is wrong. Autoflowers can vary a lot by strain. Some are fast and begin pre-flower early. Others build more plant mass first and start later.

Your environment can also affect timing. If temperatures are too low, growth can slow down. If you overwatered earlier, roots may still be recovering. If your plant had stress from transplanting, heavy training, or early nutrient issues, it may take longer to switch gears. In pictures, a delayed plant often looks healthy but smaller than expected. The main thing is that new growth is still happening and the leaves look normal.

Early warning signs you can spot in week 4 pictures

Week 4 is also when some problems become clearer. One common issue is early deficiency, often starting on lower leaves. If you see lower leaves turning pale green or yellow while the top stays green, that can be a sign of a mobile nutrient shortage. In simple terms, the plant moves nutrients from older leaves to new growth when it is missing something. This does not always mean you should feed heavily. Autoflowers can be sensitive. The better approach is to look for patterns and changes over several days.

Another warning sign is leaf “clawing.” Clawing looks like the tips of leaves curl downward like a hook. If the leaves are also very dark green, it can point to too much nitrogen or too much feeding. In week 4, some growers keep feeding as if the plant is still in heavy veg, and the plant reacts badly. In photos, nitrogen stress often shows a shiny, dark look, and the leaves may feel thick.

Watch for heat or light stress too. If leaves curl up at the edges like a taco, or the top leaves look dry and stiff, your light may be too intense or too close. In photos, the top of the plant may look lighter or slightly bleached compared to the rest. That top-only damage is a big clue.

Also look for pests. In week 4, leaves are larger, so pest marks become easier to see. Check for tiny pale dots, irregular speckling, or faint streaks. Take a close-up photo of the underside of a leaf if you suspect pests.

Care focus: when to adjust feeding and why autos need lighter dosing

Week 4 is a time to be careful with nutrients. Many autoflowers do not need strong feeding early on, especially if you are in rich soil. If you are using bottled nutrients, week 4 is often when people start increasing doses. The safer method is to increase slowly and only if the plant shows a real need.

Look at your photos and ask these questions:

  • Are lower leaves fading fast, or is it mild and slow?
  • Are leaf tips burning and getting worse?
  • Is new growth healthy and steady?
    If the plant looks healthy, keep changes small. Big changes can shock autos and slow them down right when they are trying to transition.

Watering still matters a lot in week 4. Overwatering can hide as “droopy leaves” that do not perk up. In pictures, the plant may look heavy and sad even though the soil is wet. A healthy plant will usually perk up after the medium dries a bit and roots get oxygen again.

Training should also stay gentle. If you do any bending, do it slowly and avoid hard snaps. Autoflowers have a shorter life cycle, so long recovery time can reduce final yield. In week 4, simple leaf tucking and light branch positioning are often enough.

Week 4 is the transition week for many autoflowers. Healthy plants show thicker stems, fuller branching, steady color, and strong new growth. Many plants start pre-flowers at the nodes, but some begin later and can still finish well. Use photos to watch for early problems like yellowing lower leaves, clawing dark leaves, top-only light stress, and pest speckling. Keep your adjustments small, especially with nutrients and watering. A calm, steady approach in week 4 helps the plant move into early flower without setbacks.

Week 5 (Days 29–35): Early Flower — Pistils and Bud Sites Multiply

Week 5 is when many autoflowers clearly move into early flowering. In week-by-week pictures, this is often the first week where your plant starts to look like it is “making buds,” not just leaves. You will usually see more white hairs (pistils), more bud sites, and a change in how fast the plant grows. Some plants will still stretch upward during this week, but the main focus starts to shift toward flower building.

Healthy picture signs in Week 5

In photos, a healthy Week 5 plant usually shows white pistils at many nodes. Pistils are thin, white hairs that come from small, teardrop-shaped structures called calyxes. You may see them first where branches meet the main stem, then they appear across the top growth and side branches.

Another good sign is bud sites multiplying. A bud site is a small cluster where pistils form and future buds will thicken. In pictures, bud sites look like tiny “buttons” with a few white hairs. They will show up at the top of the plant and along the branches. If your plant is healthy, you should see new bud sites appear over several days, not just one day.

Also look for strong, steady leaf color. During early flower, the plant still needs healthy leaves to power growth. In photos, leaves should look mostly even green. New growth can be slightly lighter green than older leaves, but it should not look washed out or yellow. Leaves should look firm, not limp. Many healthy plants show leaves that angle slightly upward during the light cycle.

You may also notice that the plant is still stretching (growing taller). This is normal. In Week 5, the stretch often slows near the end of the week, but not always. In pictures, stretching looks like new stem length between bud sites and a more open canopy. A healthy stretch is steady, not wild or weak. Stems should look thicker over time, not thin and floppy.

Problems to spot in pictures (and what they usually mean)

Week 5 is also a common time for issues to appear because many growers change feeding, watering, and environment when flowering starts. Pictures can help you catch problems early.

Burnt leaf tips that spread fast (possible nutrient burn / too strong feed)
In photos, nutrient burn often starts as yellow or brown tips on the newest or most exposed leaves. If the feeding is too strong, the burnt area can grow, and leaf edges may look crispy. Another clue is very dark green leaves, sometimes with a slight “claw” shape (tips curling downward). What to do: reduce feed strength, avoid stacking too many additives, and make sure you are not feeding too often. With autos, it is usually safer to use lighter nutrient strength than you would for photoperiod plants.

Yellowing that moves upward (possible underfeeding or pH problems)
If lower leaves turn pale yellow first, this can mean the plant is pulling nutrients from older leaves to support new growth. That can happen if the plant needs more food, especially nitrogen early in flower. In pictures, you may see the lower leaves fade while the top looks better. But yellowing can also happen from pH lockout, where nutrients are in the soil but the roots cannot absorb them well. In photos, lockout can look messy: yellowing, spots, or strange patterns that do not match one clear deficiency. What to do: avoid big swings. Use a consistent feeding plan, and make sure your pH range is appropriate for your grow medium. If you change something, give the plant a few days to respond before making another change.

Droopy leaves with a heavy, wet-looking pot (watering imbalance)
Overwatering is very common in early flower because the plant is bigger, and growers think it needs a lot more water. In pictures, overwatering often shows as drooping leaves that look thick and heavy, not dry and thin. The soil surface may look dark and wet. Underwatering looks different. In photos, underwatered leaves often droop too, but they look thinner and softer, and the plant may look dull overall. Pots feel very light when lifted. What to do: water based on pot weight and soil dryness, not a fixed schedule. Let the top layer dry a bit and encourage roots to search deeper. Good drainage matters a lot.

Slow bud site growth (environment stress)
If bud sites do not multiply during the week, check your environment. Heat stress, low humidity, poor airflow, or light too close can slow progress. In photos, heat or light stress may show “taco” leaves (edges folding upward) or top leaves that look dry and stressed. What to do: stabilize temperature, improve airflow, and keep a safe distance between the light and the canopy.

Care focus for Week 5: airflow, humidity, and mold prevention

Week 5 is a smart time to focus on airflow and humidity control because flowers start forming small, tight spaces where moisture can sit. Mold problems often begin quietly before you see them. In week-by-week pictures, you may not “see mold” early, but you can see risk factors.

Try to keep air moving gently across the plant. Leaves should lightly move, not whip around. Make sure there are no dead-air pockets inside the canopy. If the plant is very bushy, gentle leaf tucking can open space without heavy pruning. Autos can be sensitive to stress, so avoid major defoliation unless it is truly needed.

Also watch for water sitting on leaves or buds. If you mist plants, be careful in flower. Wet flower areas can lead to mold. If humidity is high, use better ventilation and avoid watering right before lights off.

In Week 5, a healthy autoflower usually shows more pistils, more bud sites, and steady growth. Your pictures should capture clear white hairs at many nodes, small bud clusters forming, and leaves that still look strong. The biggest problems to catch early are nutrient burn (crispy tips and dark clawing), fast yellowing (underfeeding or pH issues), and watering mistakes (heavy droop with wet soil). If you keep the environment stable—especially airflow and humidity—you give your plant a clean path into heavier bud building in the weeks ahead.

Week 6 (Days 36–42): Bud Building — Stacking and Frost Starting

By Week 6, many autoflowers are clearly in flower. In week-by-week pictures, this is the stage where small bud sites start turning into thicker “bud stacks.” You may also notice the first real signs of “frost,” which is the shiny coating of trichomes on the small leaves near the buds (often called sugar leaves). A healthy Week 6 plant usually looks busy and full, with many white pistils and buds forming at several points on each branch.

One important thing to remember is that Week 6 can look different depending on strain and growing conditions. Some plants are still stretching a little, while others have stopped getting taller and are putting most of their energy into bud growth. So, when you compare pictures, look for the overall pattern: more bud size, more pistils, and increasing resin, not just height.

What healthy growth looks like in pictures this week

In a healthy Week 6 timeline photo, you will often see these signs:

  • Bud sites are stacking. Instead of tiny, separate hairs, you see small clusters that are starting to connect into thicker bud shapes.
  • Lots of white pistils. The hairs are usually bright white and stand out clearly against green leaves.
  • Early trichomes show up. You may see shine or “glitter” on sugar leaves and around bud sites, especially in close-up photos.
  • Leaves still look active. Fan leaves should mostly be flat and open, not curled hard, not crispy, and not dropping heavily.
  • Even growth across the plant. The top buds may be larger, but the middle and lower buds should also be developing, not fully stalled.

A healthy plant at this stage often has a strong smell starting to build. That is normal. If the smell is strong but the leaves and buds look healthy, it is usually a good sign.

Early problems you can spot from Week 6 pictures

Week 6 is also a common time for problems to show up. Many issues become more visible now because the plant is feeding and drinking more. Here are the main problems you can catch early from photos.

Leaves are paling too fast (possible underfeeding or pH trouble)

It is normal for a plant to slowly lighten later in flower, but in Week 6, a sudden or fast fade can be a warning sign. In pictures, you may notice:

  • Lower leaves turning yellow quickly
  • Whole plant looking lighter week to week
  • New growth staying small or weak

This can happen if the plant is not getting enough nutrients, especially during a heavy bud-building stage. It can also happen if the root zone pH is off, which can block nutrient uptake even if you are feeding. If your pictures show a fast fade, it helps to look at where it starts. If it starts at the bottom first, it often points to a mobile nutrient issue, like nitrogen. If it starts in newer growth or shows strange patterns, it can be a different problem.

Leaf edges crisping (possible heat stress, salt buildup, or overfeeding)

In Week 6 photos, crispy edges can look like a thin brown outline around the leaf. You might also see tips that are burnt and curling. This can be caused by:

  • Too strong nutrients (high salts)
  • Salt buildup in the medium over time
  • Too much heat or too intense light

If only the very tips are burnt and the rest of the leaf looks fine, it is often mild nutrient burn. If the burn spreads along the edges and gets worse quickly, it may be a stronger issue that needs attention.

Pest damage becomes easier to see

Pests can hide early, but by Week 6 their damage often becomes clearer in close-ups. In photos, watch for:

  • Stippling: tiny pale dots across the leaf surface
  • Scratches or silvery trails: a common sign of thrips
  • Curling or twisted new growth: can happen with several pests
  • Uneven leaf color that does not match feeding patterns

The most useful pictures for pest checks are close-ups of leaves, including the undersides. If you see damage, it is smart to check quickly because flower is a sensitive stage. The sooner you spot pests, the easier it is to control them.

Care focus this week: defoliation caution for autoflowers

Week 6 is when many growers feel tempted to remove lots of leaves to “open up” the plant. But with autoflowers, heavy defoliation can slow growth because autos have a fixed timeline. In this stage, the plant needs healthy leaves to power bud growth.

A safer approach is usually:

  • Remove only clearly damaged leaves (dead, heavily spotted, or badly blocking airflow)
  • Avoid stripping the plant. Do not remove many leaves at once.
  • Use gentle leaf tucking first. In pictures, if a big fan leaf is shading a bud site, you can often tuck it behind a branch instead of cutting it.
  • Keep airflow in mind. If the plant is very dense, small, careful cleanup near the bottom may help. The goal is better air movement, not a bare plant.

Also, in Week 6, buds are getting thicker, so humidity control becomes more important. Good airflow and stable conditions help lower the risk of mold later.

Week 6 is a key bud-building stage. In pictures, healthy plants show stacking bud sites, lots of white pistils, and early frost on sugar leaves. Leaves should still look active and mostly green. The main problems to spot early are a plant that fades too fast, crispy leaf edges that suggest stress or salt buildup, and pest damage like stippling or silvery marks. For care, keep changes gentle. Autoflowers can react poorly to heavy defoliation, so focus on small, careful cleanups, leaf tucking, and strong airflow. If your Week 6 pictures look better than Week 5, with bigger buds and more resin, you are usually on the right track.

Week 7 (Days 43–49): Mid-Flower — Density, Aroma, and Resin Increase

Week 7 is often the “middle stretch” of flower for many autoflowers. In pictures, the plant usually looks fuller and heavier than it did in Week 6. Buds begin to look more like real colas instead of small clusters. Smell often gets stronger, and you may notice more sticky resin on the sugar leaves. This is also a week where problems can hide inside the buds, so careful checking matters.

Healthy picture signs in Week 7

Buds get thicker and more packed.
When you compare photos from Week 6 to Week 7, you should see stacking. “Stacking” means the bud sites are building on top of each other. The bud looks longer and fatter, and the gaps between bud clusters start to close. The plant may still be adding new pistils, but the main change is size and density.

Resin increases on sugar leaves and buds.
In a clear close-up photo, you may see “frost” spread across the small leaves around the buds. The buds may look more shiny, dusty, or sparkly under light. This is normal and often a good sign that the plant is moving deeper into flower.

Some pistils darken naturally.
Many pistils will still be white, but it is common for some to turn orange or brown. This does not always mean the plant is ready to harvest. In Week 7, it often means the bud is maturing and tightening. A healthy photo usually shows a mix of white and darker pistils, not all pistils dark at once.

Fan leaves may fade slightly, but not crash.
Some lower fan leaves may lighten or yellow a bit as the plant directs energy into flowers. Small changes can be normal. But in a healthy plant, the fade is slow. It should not look like the plant is “giving up” overnight.

Problems to spot from photos in Week 7

Week 7 is important because buds are thicker. Thick buds hold moisture and block airflow. That makes mold and rot more likely if conditions are poor. Pictures can help you catch early signs before they spread.

Powdery mildew (PM): what it looks like in pictures

Powdery mildew often shows up as:

  • Light, dusty patches on leaf tops
  • White or gray spots that look like flour
  • Spots that spread in a few days

In photos, PM can be hard to see if lighting is bad. Take pictures under normal white light if possible. Check leaves near the buds, because mildew can spread from leaf to bud. If you see suspicious patches, zoom in and compare different angles. If it wipes off like dust, treat it seriously.

Bud rot (botrytis): early photo clues

Bud rot is one of the biggest risks in mid to late flower. It often starts inside the bud where you cannot easily see it. In photos, look for:

  • A small area of sugar leaves turning brown and dying while the rest looks healthy
  • Leaves near the bud that look dry, crispy, or “pulled in”
  • A dark spot deep in the bud when you gently open it
  • A cola that looks dull, gray, or “matted” compared to others

A key warning sign is when one small section looks dead while the rest of the plant looks fine. That difference stands out in close-up pictures.

Foxtailing vs normal swelling: how to tell from bud shape

Foxtailing means the bud keeps making new “spires” or thin stacks on top of the bud. It can be genetic, but it can also come from stress like heat or strong light.

Normal swelling in Week 7 looks like:

  • Buds getting rounder and thicker
  • Calyxes swelling evenly
  • A more uniform shape

Foxtailing from stress often looks like:

  • Tall, skinny towers forming on top
  • Bud tips growing unevenly
  • New white pistils shooting out mainly at the top
  • The top cola changing shape faster than lower buds

Pictures from the side help most. If foxtailing is stress-related, it often shows up strongest on the highest buds closest to the light.

Care focus in Week 7: support, humidity control, and stable light distance

Support: stop branches from bending or snapping.
In Week 7, buds can get heavy. In pictures, you might notice branches leaning outward or stems bending. If you see that, add support early. You can use:

  • Soft plant ties
  • Stakes
  • A simple ring or trellis net

Support helps buds stay open to airflow and light. It also prevents sudden breaks that can ruin a cola.

Avoid humidity spikes, especially at night.
Humidity swings are a big cause of mildew and bud rot. Many grows get more humid when lights go off because the temperature drops. If you see wet-looking buds or droopy leaves in morning photos, it can be a clue that humidity is too high overnight.

Good habits this week:

  • Keep steady airflow across the canopy (not blasting one spot)
  • Remove standing water near the tent or room
  • Do not let leaves pile up tightly around buds
  • Check the densest colas more often than the rest

Keep light distance stable to prevent stress.
As buds swell, the top of the plant may creep closer to the light. If the top bud looks lighter, bleached, or oddly shaped compared to the rest, it may be getting too much intensity. Take a weekly top-down photo and a side photo to see if the canopy is rising.

If needed, raise the light or adjust the plant’s height. Small changes are safer than big swings.

In Week 7, a healthy autoflower usually shows thicker, denser buds, stronger aroma, more resin, and some natural darkening of pistils. Photos should show steady progress, not sudden decline. The main problems to watch for are powdery mildew, bud rot, and stress foxtailing, because thicker buds can trap moisture and heat. Focus on support, stable light distance, and steady humidity with good airflow. If you catch early warning signs in pictures this week, you can prevent small issues from turning into harvest-ending problems.

Week 8 (Days 50–56): Late Flower — Ripening Starts

By Week 8, many autoflowers are in late flower. In pictures, this is the stage where buds start to look “finished,” but they may still need time. Ripening is not only about pistils turning orange. It is mostly about bud shape, swelling, and trichome development. Your goal this week is to keep the plant stable, avoid stress, and watch for signs that the finish line is close.

Healthy picture signs in Week 8

In a healthy Week 8 plant, buds look thicker than the week before. The main change you see in photos is bud swelling. Calyxes (the small pod-like parts that make up the bud) begin to puff up. This makes buds look more rounded and dense. If you take close-up photos every few days, you may see that buds are stacking tighter, and the gaps between little bud clusters start to fill in.

Pistils often change color at this stage. Many white hairs will turn orange, tan, or brown, and they may curl inward. This is normal. However, pistils can change early from stress, heat, or strong light, so do not use pistils alone to judge readiness. In healthy plants, you will usually still see some fresh white pistils too, especially near the top of the buds, even in late flower.

Resin is also more obvious. Sugar leaves (the small leaves in and around the buds) often look frosty and sticky. In photos, this looks like a shiny or dusty coating. Some strains look very “white” with trichomes by Week 8, while others look less frosty but still mature well. Genetics can change the look a lot, so focus on changes over time in your own plant.

Leaf color can change in late flower. A gentle fade can be normal, especially in older fan leaves. You may see yellowing in lower leaves first, while the top stays greener. This can happen as the plant shifts energy to buds. The key is speed. A slow fade over days is often fine. A fast crash in color, where many leaves turn pale or brown quickly, is a sign something is off.

Problems to spot in pictures

Week 8 is a common time for stress signs to show up, because buds are heavy and the plant is working hard. The most important problems to watch for are nutrient burn, late-stage light or heat stress, and moisture-related bud issues.

Nutrient burn late in flower (dark claw + crispy tips)
In pictures, nutrient burn often starts as burnt tips on leaves. The tips look brown and dry, like the leaf was singed. If it gets worse, you may see the leaf edges turn crispy too. Another clue is very dark green leaves combined with a claw shape. “Clawing” means the leaf tips curve downward like a hook. When this happens late, it often means the plant is getting too strong of a feed, or salts are building up in the medium.

To keep it clear: a tiny bit of tip burn is not always an emergency. Many plants show mild tip burn but keep finishing fine. The warning sign is when the burn spreads quickly, and new leaves near the buds start showing damage too.

Normal late fade vs. a problem fade
A normal late fade usually affects older fan leaves first. They turn from green to light green, then yellow, and may fall off near the end. In photos, this looks gradual and even. A problem fade looks different. It can start in newer leaves, move fast, or show patchy patterns like spots, stripes, or sharp edge burn. If your top leaves are paling fast, or the plant looks washed out within a few days, it can be underfeeding, pH issues, or stress from too much light or heat.

Heat and light stress (bleaching, harsh foxtails, taco leaves)
This week, buds can be sensitive at the top of the canopy. In pictures, bleaching looks like pale, almost white parts on the highest buds or nearby leaves. It is often limited to the top, where light is strongest. Heat stress can show as “taco” leaves, where leaf edges curl up like a canoe. Sometimes you see both at once, because strong light also creates heat.

Foxtailing can be tricky. Some strains naturally grow pointy bud tips. Stress foxtailing looks more extreme. You may see tall, thin new spikes growing out of the buds, especially at the top. The bud looks like it keeps stretching upward instead of swelling wider. If foxtails appear suddenly and mostly near the light, stress is a likely cause.

Bud moisture problems (early bud rot risk)
Even though bud rot is more common closer to harvest, it can start late flower when buds get thick. In photos, early bud rot can look like a small section of the bud turning dull, brown, or collapsed. Sometimes a sugar leaf near the bud turns brown and dies while the rest looks fine. That “one dead leaf” can be an early clue. If you gently open the bud (carefully), the inside may look brown or mushy. This is why airflow and humidity control matter a lot in late flower.

Care focus: When to reduce feeding and how to avoid sudden swings

If you change anything this week, make it small and slow. Autoflowers can react quickly to stress. Large changes in feeding, watering, or light distance can slow ripening, cause foxtails, or trigger leaf damage.

Feeding decisions
Some growers reduce feeding in late flower, while others keep a steady program until harvest. No matter your style, avoid “big moves.” If your pictures show dark clawing, fast tip burn, or harsh edge crisping, you may need to lower nutrient strength. If your pictures show a gentle fade but buds are swelling and the plant looks stable, you may not need to change much. If the plant is fading too fast and looks weak, it may need a small nutrition adjustment, not a heavy dose.

Watering stability
In Week 8, roots still need oxygen. Overwatering can make leaves droop and slow bud swelling. Underwatering can cause the plant to wilt and stress, which can also affect buds. In pictures, check leaf posture and the medium surface. A good habit is to lift the pot to feel weight. A very heavy pot often means it is still wet. A very light pot usually means it needs water soon.

Avoid sudden environment swings
Keep temperature and humidity as steady as you can. Big humidity spikes can raise mold risk. Big heat spikes can trigger foxtailing and bleaching. Keep airflow moving across and through the canopy. If buds are getting heavy and leaning, use ties or supports so branches do not fold. A folded branch can slow bud growth and create a damp pocket inside the canopy.

Week 8 is when ripening becomes obvious in pictures. Healthy plants show bud swelling, more frosty resin, and pistils that slowly darken and curl in. A gentle leaf fade can be normal, but fast damage is not. Watch closely for late nutrient burn, top-canopy light stress, and early moisture issues in dense buds. The best strategy is stability: small adjustments, steady watering, and a consistent environment. If you keep stress low this week, your buds have the best chance to finish dense, sticky, and healthy.

Weeks 9–12+ (Days 57–84+): Finish and Harvest Window — “Trichomes Tell the Truth”

By Weeks 9 to 12 (and sometimes later), your autoflower is moving from “building buds” to “finishing and ripening.” This stage is where pictures can help the most, because small visual changes can mean big differences in harvest timing and final quality. It is also the stage where many growers make one of the biggest mistakes: harvesting too early because the buds look large enough. The best harvest timing is about ripeness, not just size.

Healthy picture signs to look for (what “normal” often looks like)

At this stage, many plants slow down in vertical growth. Instead, buds get denser, calyxes (the small tear-shaped parts that make up the bud) swell, and resin becomes more obvious. In pictures, you may notice:

  • More swollen buds: Buds may look “puffier” and heavier from week to week.
  • Pistils changing color: Many pistils (the hair-like strands) darken from white to orange, rust, or brown. They also tend to curl inward toward the bud.
  • Leaf fade can be normal: Some fan leaves may fade from green to lighter green or yellow, especially lower leaves. A gradual fade can be normal late in flower.
  • Sticky resin and frost: Sugar leaves and bud surfaces often look shinier or “frosty.” This is a good sign that trichomes are developing.

Important: Pictures of pistils and leaf color can help, but they are not the most reliable harvest tool. Trichomes are the most reliable visual sign.

Trichomes: the best “harvest clock” you can photograph

Trichomes are tiny resin glands that look like crystal dots. Up close, many trichomes have a stalk and a round head. To check ripeness, you need a close-up view. A phone camera alone may not be enough unless you use a clip-on macro lens.

In simple terms, trichomes usually shift through three main looks:

  • Clear: Looks like glass. This is usually too early. Effects often feel lighter and shorter.
  • Cloudy (milky): Looks like white fog or pearl. This is often the main harvest window for many growers.
  • Amber: Looks golden or honey-colored. More amber can mean a heavier, more relaxing effect for many people.

A common photo mistake is using blurry close-ups or checking trichomes on the wrong spot. Trichomes ripen at different speeds on different parts of the plant. For the best picture check:

  • Focus on the bud itself, not only sugar leaves.
  • Check top colas and mid-level buds, because tops can ripen faster under stronger light.
  • Take several photos in different areas to avoid a wrong call.

Pistils and bud shape: helpful, but not enough by themselves

Pistils are easy to see in pictures, so many people use them as a harvest guide. Pistils do matter, but they can fool you. Some strains keep throwing new white pistils late into flower. Heat stress, light stress, or even rough handling can also cause pistils to darken early.

Use pistils as a clue, not a final answer. In pictures, a more ready plant often shows:

  • Many pistils darkened and curled inward
  • Buds looking more swollen and firm
  • Fewer fresh, bright white pistils (though some may still appear)

Common late-stage problems you should watch for in pictures

Late flower is also when hidden problems can ruin buds fast. Weekly photos can help you catch them early.

Bud rot (botrytis) risk signs
Bud rot can start inside thick buds. It is easier to prevent than to fix. In pictures, look for:

  • A patch of sugar leaves turning yellow or brown in one small area
  • Leaves that look dead and dry while nearby leaves look healthy
  • A bud section that looks duller or “collapsed” compared to others
    If you suspect bud rot, you must inspect closely. Thick buds plus high humidity and weak airflow raise the risk.

Powdery mildew signs
Powdery mildew can look like a light dusting of flour on leaves or sugar leaves. In photos, it may show as:

  • White or gray powdery spots
  • Patches that spread over time
    This often appears when humidity is high and airflow is low.

Late nutrient or watering stress
In late flower, heavy feeding can cause harsh leaf burn. Underfeeding can also cause the plant to fade too fast. In pictures, watch for:

  • Crispy leaf tips and edges spreading quickly (possible burn or salt buildup)
  • Sudden yellowing racing up the plant (possible underfeeding or pH issues)
  • Drooping leaves with wet-looking soil (overwatering pattern)

A steady, gradual change is usually safer than sudden big changes.

What to do at the end: preparing for harvest and protecting quality

Your goal in Weeks 9–12+ is to keep the plant stable while buds finish. Small, steady actions are better than big swings.

  • Keep the environment stable: Avoid big humidity spikes, especially at night. Keep airflow moving through the canopy.
  • Support heavy buds: If branches lean, use soft ties or stakes so buds do not flop and trap moisture.
  • Keep checking with close-up trichome photos: Take pictures every few days when you think harvest is close.
  • Inspect buds carefully: Look for early rot signs and remove any damaged parts right away if you find them.
  • Avoid handling buds too much: Touching buds can damage trichomes and reduce quality.

When you decide to harvest, plan ahead for drying. A clean drying space, gentle airflow, and controlled humidity help keep flavor and reduce mold risk.

Weeks 9–12+ are the “finish line” for autoflowers, but this is not the time to rush. In pictures, healthy plants show swelling buds, changing pistils, and heavy resin. Still, the best harvest timing comes from trichomes, not bud size or pistil color alone. Take clear close-ups from multiple bud areas and look for the shift from clear to cloudy, with some amber if that is your goal. At the same time, keep watching for late problems like bud rot, powdery mildew, and stress from overfeeding or overwatering. If you stay steady, take good pictures, and use trichomes as your main guide, you will greatly improve your chances of harvesting at the right time with better quality buds.

Quick Visual Diagnosis Guide (Photo-Based): Healthy vs Problem Growth

When you grow autoflowers, pictures can help you catch problems early. The goal is to look for patterns, not just one odd leaf. Take clear photos in the same way each time. Use white light (not purple grow-light color) so the leaf color is real. Take four types of photos: the whole plant, a top-down canopy shot, a side view, and close-ups of the worst-looking leaves and the newest growth. Then compare what you see to the signs below.

Overwatering vs. Underwatering (What Photos Usually Show)

Overwatering is one of the most common issues for autos. In photos, the plant often looks “heavy.” Leaves may droop down, but they can still feel thick and firm. The potting mix may look dark and wet for days. The plant may also grow slowly, even if the leaves look big. Another clue is that the droop stays the same all day, even when lights are on.

Underwatering often looks different. Leaves may droop too, but they usually look thinner and less full. In photos, the plant can look “limp,” and the potting mix looks light colored, dry, and pulled away from the pot edges. Underwatered plants often perk up within a few hours after watering.

Photo tip: Always include the pot surface in your picture. A dry-looking top layer does not always mean the whole pot is dry, but it is a helpful clue.

Nutrient Burn vs. Nutrient Deficiency (How to Tell the Difference)

Nutrient burn usually starts at the very tips of leaves. In photos, you will see brown or crispy tips, often with a bright yellow edge behind the burn. The rest of the leaf may still look dark green. Burn often spreads after a strong feeding, or when salts build up in the medium. Another common picture sign is “clawing,” where leaves curl downward like a hook, especially if nitrogen is too high.

Nutrient deficiency often shows as fading or yellowing that spreads, not just burnt tips. In photos, deficiencies usually start on older leaves first (near the bottom of the plant) when the plant pulls nutrients upward to support new growth. You may see overall paleness, yellowing between leaf veins, or rusty spots depending on which nutrient is missing. Deficiency can also happen even if you feed, if the root zone pH is off and the plant cannot absorb nutrients.

Easy rule:

  • Burn = crispy tips first, darker leaves, often after feeding.
  • Deficiency = fading or yellowing, often starts on older leaves, and may come with slow growth.

Light Stress vs. Heat Stress (Similar Look, Different Cause)

Light and heat stress can look alike in pictures, so check where the damage is.

Light stress often shows on the top leaves closest to the light. In photos, you might see leaves “taco” upward (edges curl up), and the top may look washed out. In stronger cases, you can see bleaching, where the top turns very pale or almost white. The lower parts of the plant may look fine.

Heat stress can also cause taco leaves, but it often comes with other signs. Leaves may look dry, curled, and slightly brittle. Buds may look airy or stretched in later flower. Heat stress is more likely if the room is hot, airflow is poor, or the canopy is too close to a hot light source.

Photo tip: Take one photo of the top canopy and one photo of the lower leaves. If only the top is affected, light or heat at the top is more likely.

Calcium/Magnesium Issues vs. pH Lockout (Spots and Patterns)

Calcium and magnesium problems often show as spotting, speckling, and damaged leaf edges. In photos, you may see small rust-colored dots, patches, or “freckling,” sometimes on newer leaves. Leaves can also twist or look slightly deformed. These issues are common when using soft water, RO water, coco-based mixes, or when the plant is growing fast.

pH lockout can look like “everything is wrong at once.” In pictures, you might see multiple symptoms at the same time: yellowing, spotting, weak new growth, and burnt edges even though you are feeding. Lockout happens when the root zone pH is too high or too low, so nutrients are present but not available.

Clue: If you feed correctly but the plant keeps looking worse, lockout becomes more likely. If the plant improves after a simple adjustment (like gentler feeding and stable watering), a single nutrient issue was more likely.

Pest Clues (What to Photograph and Where to Look)

Pests can be hard to see, but pictures help a lot.

Mites often cause tiny pale dots (stippling) on leaves. In photos, the leaf can look “sandblasted.” You may also see very fine webbing in severe cases.
Thrips can cause streaks, scratches, or silvery patches, often with small black dots (waste) near the damage.
Fungus gnats are not usually seen on leaf photos, but you may notice slow growth, droop, and tiny flies near the soil.

Photo tip: Always take a close-up photo of the underside of damaged leaves. Many pests hide there.

A Simple “Don’t Panic” Sequence: Confirm → Mild Fix → Re-Check

When you see a problem, avoid making big changes all at once. Autos can get stressed easily. Use this order:

  1. Confirm the pattern with clear photos (top, bottom, close-ups).
  2. Check watering first. Many “deficiencies” are really root problems from watering mistakes.
  3. Make one mild correction (lighter feed, longer dry-back time, more airflow, or better light distance).
  4. Re-check in 3–5 days with new photos taken the same way.

If your new photos look better, keep going. If they look worse, step back and focus on the basics: stable environment, correct watering, and gentle feeding.

A good picture diagnosis is about patterns. Look at where the issue starts (top or bottom), how it spreads, and what the leaf shape and color are telling you. Overwatering, strong feeding, and heat/light stress are the most common problems to spot early. Use consistent photos, change only one thing at a time, and give the plant a few days to respond. When you do this, you will catch issues early and keep your autoflower timeline on track.

Environment and Feeding Timeline for Autoflowers (Simple, Week-Matched)

Autoflowers can grow fast, so small mistakes can show up quickly in pictures. The goal is not to chase every tiny change. The goal is to keep the plant in a steady, “comfortable” zone week by week. When your environment and feeding are stable, your plant will usually look healthy even if it is a little small or a little behind schedule. Use this section as a simple timeline you can match to your weekly photos.

Temperature and humidity by stage

Week 1–2 (seedling stage):
Seedlings like warmth and gentle moisture in the air. If it is too cold, growth slows and leaves can look thin and weak. If it is too dry, seedlings may look stiff, curled, or stressed. Aim for warm air and moderate-to-high humidity. Also keep airflow light. A strong fan can dry the seedling fast and make it lean.

Week 3–4 (early vegetative stage):
This is when the plant builds leaves, stems, and roots. Your pictures should show bigger leaves and tighter node spacing if the plant is happy. Humidity should come down a bit compared to seedling stage. If humidity stays too high, leaves may look “puffy,” and the plant can become more sensitive to fungus later. If humidity is too low, leaves may look dry or taco upward.

Week 5–8 (flowering and bud building):
As buds form, humidity control matters more. High humidity plus dense buds can raise mold risk. You want steady airflow through the plant, but not a windstorm. In photos, healthy leaves usually look firm, not limp. Buds should slowly stack and swell. If the room is too hot, you may see leaf edges curling up, top leaves canoeing, or buds foxtailing. If the room is too cold, the plant may look slow and “stalled,” and buds can stay airy.

Week 9–12+ (late flower and finish):
Late flower is about keeping buds clean and dry while the plant ripens. Humidity should be lower than earlier stages. Big swings are the enemy. In photos, late flower can show some normal fading of older leaves. That is fine. What you do not want is a sudden collapse: fast yellowing, crispy leaves spreading quickly, or signs of bud rot.

Watering rhythm by pot size and plant size

Watering issues are one of the easiest problems to spot in pictures, and also one of the most common. The trick is that overwatering is often about frequency, not the total amount.

Week 1–2:
Roots are small. If you soak the whole pot, the plant can droop because roots do not get enough oxygen. Water in a small ring around the seedling, then wait. In pictures, overwatered seedlings often look droopy with leaves that hang down. Underwatered seedlings may look limp too, but the soil usually looks dry and the leaves can look thin or papery.

Week 3–4:
Roots start to spread. You can water a wider area, but you still want wet-dry cycles. A simple rule: water, then wait until the pot feels much lighter before watering again. In photos, healthy plants often look perky a few hours after watering. If your plant is droopy all the time, you may be watering too often.

Week 5–8:
The plant drinks more, especially during stretch and early bud building. You may water more often, but still let the pot breathe. In pictures, “heavy” overwatering can show as leaves that droop from the stem down, sometimes with a thick, swollen look. If only the leaf tips droop, it can also be heat stress or too much light, so check the environment too.

Week 9–12+:
Water needs may change. Some plants slow down and drink less late in flower. If you keep the same watering schedule as mid-flower, you can accidentally keep the roots too wet. Watch your photos: if the plant looks tired and the pot stays heavy, give it more time between waterings.

Nutrient timing: when to start, and why “less is more” for autos

Autoflowers are often sensitive to strong feeding, especially early. Many growers get better results by starting light and increasing slowly.

Week 1–2:
In many soils, seedlings do not need extra nutrients yet. Too much feed can show up as burnt tips or dark, shiny leaves. In photos, nutrient burn usually starts at the very tips of leaves, like a brown or yellow “burn” point.

Week 3–4:
This is when some autos begin to ask for more food, depending on your medium. Start with a mild dose and watch the new growth. Healthy new growth is a steady green, not pale and not overly dark. If leaves get very dark and claw down, it can be too much nitrogen or too much watering.

Week 5–8:
Feeding often shifts toward bloom support. Buds are forming, so the plant needs steady nutrition, but not extremes. If leaves fade too early and fast, you may be underfeeding or have pH problems. If leaf tips burn and edges crisp, you may be overfeeding or have salt buildup. Pictures help here: burn often looks like sharp, dry damage at tips and edges, while a simple fade looks more like overall yellowing on older leaves.

Week 9–12+:
Late flower is not the time to “fix everything.” Big changes can stress the plant and reduce quality. If the plant is mostly healthy, keep it stable. If you see clear burn or clear deficiency, make small moves and watch for changes over several days.

Common mistakes that show up in pictures

  • Hot soil or strong nutrients too early: dark leaves, burnt tips, slow growth.
  • Overwatering: constant droop, slow growth, heavy wet medium.
  • Light too strong or too close: canoeing leaves, bleaching on top, stressed tops only.
  • Big environment swings: twisting leaves, odd growth, random spotting.
  • Ignoring airflow and humidity in flower: mildew spots, mushy brown areas in buds, or “dead” sugar leaves near a cola.

If you want the simplest plan: keep your environment steady, water only when the pot is light, and feed autoflowers gently. Your week-by-week pictures should show steady progress, not perfection. When something looks off, do not panic and do not make five changes at once. Make one small correction, then compare your photos again after a few days. Stability is what helps autoflowers finish strong, with healthy leaves, solid buds, and fewer late-stage surprises.

Conclusion

A good autoflower timeline is not only about what the plant looks like. It is also about what the plant needs each week to stay on track. Autoflowers move fast, so small mistakes can show up in pictures within days. The goal is steady growth, stable leaves, and buds that build week after week without sudden stress.

For the seedling stage, your main job is to keep the root zone warm, slightly moist, and full of air. Most seedling problems come from watering too often. In pictures, an overwatered seedling often looks droopy, with soft leaves that hang down. The stem may look thin, and growth may stall. Instead of “feeding” the plant early, focus on light watering around the seedling, not soaking the whole pot. Let the top layer dry a bit between waterings so oxygen can reach the roots. Keep gentle airflow so the stem gets stronger, but do not blast the plant with a strong fan.

As the plant enters early vegetative growth, it starts building more leaves and nodes. This is when many growers begin to change the environment. A steady temperature and humidity helps leaves stay flat and healthy. If your air is too dry, you may see leaf edges curl up or the surface look rough. If the air is too hot, you may see “taco” leaves, where the sides curl upward like a canoe. These are common signs you can spot in week-by-week pictures, especially on the top leaves closest to the light. The fix is usually simple: lower heat, improve airflow across the room, and adjust the light distance or intensity.

Watering rhythm changes as the plant grows. A small plant in a big pot does not need heavy watering. But once the plant has a larger root system, it will drink more and faster. In pictures, a thirsty plant can droop too, so do not assume droop always means overwatering. The difference is the soil or medium. If the pot feels light and the top is dry, the plant may need water. If the pot feels heavy and wet, droop is more likely from overwatering. Also watch leaf texture. Underwatered leaves may look thin and limp. Overwatered leaves can look swollen or heavy.

Feeding is another area where timing matters. Autoflowers often need less fertilizer than photoperiod plants. Starting too strong can cause nutrient burn, which often shows up first as burnt tips. In pictures, burnt tips look like tiny brown or yellow ends on many leaves, especially on newer growth if the feed is too hot. If you keep feeding the same way, the damage can spread into the leaf edges. A safer approach is to start light and increase slowly only if the plant asks for more. Many growers begin nutrients after the plant has several sets of true leaves and is clearly growing fast, but the exact week depends on the soil, the medium, and what is already in the mix.

It also helps to understand the difference between deficiency and lockout. In pictures, a deficiency often starts in a specific area of the plant. For example, a mobile nutrient issue may start in older lower leaves. A lockout can show mixed symptoms and fast decline because the plant cannot take up what it needs, often due to pH problems or salt buildup. If you see sudden yellowing that moves quickly upward, or spotting that seems to worsen even when you feed, consider that the problem may not be “more nutrients.” It may be a root zone issue. Keeping a steady watering routine and avoiding heavy salt buildup helps prevent this.

As the plant moves into pre-flower and early flower, the environment becomes even more important. Buds are forming, and the plant is putting energy into new growth at many sites. Humidity control matters because mold problems can start early, even if you do not notice them at first. You want enough airflow to keep moisture from sitting on leaves and inside the canopy. Week-by-week pictures should show buds growing and leaves staying mostly healthy. If you see shiny, very dark leaves with a claw shape, that can point to too much nitrogen or too much water. If you see pale leaves and slow bud growth, the plant may be underfed, or the roots may be stressed.

During mid to late flower, stability is the keyword. Big swings in heat, humidity, or feeding can slow bud stacking and may cause foxtailing or stress growth. In pictures, light stress often shows on the top buds and top leaves first. You may see bleaching, where the top looks washed out or too pale. Heat stress may show as taco leaves near the top, with edges curling up. If only the very top is affected, your light may be too close or too intense. Adjusting the light and improving ventilation can help.

Late flower also brings natural fading for some plants, but it should look gradual. A sudden “crash” where many leaves yellow fast can point to a problem like lockout, overfeeding, or root issues. Use your pictures to compare changes over a few days, not just one snapshot. Healthy late flower usually shows swelling calyxes, steady resin, and buds that look firm. At the same time, keep checking for pests and disease. Tiny speckling on leaves can be a pest sign, while powdery patches can suggest mildew. Inside buds, brown dead material can be an early bud rot clue. The sooner you spot it, the better.

Finally, the most common mistake is reacting too fast. Autoflowers are sensitive, and heavy corrections can make things worse. When you see a problem in pictures, start with the basics: check watering, temperature, humidity, airflow, and light intensity. Make one change at a time, then re-check in a few days with new photos. If you build a steady environment and a gentle feeding plan, your week-by-week pictures will usually show the right story: consistent growth, clean leaves, and buds that ripen without drama.

Research Citations

Hesami, M., Pepe, M., & Jones, A. M. P. (2023). Morphological characterization of Cannabis sativa L. throughout its complete life cycle. Plants, 12(20), 3646. https://doi.org/10.3390/plants12203646

Spitzer-Rimon, B., Duchin, S., Bernstein, N., & Kamenetsky, R. (2019). Architecture and florogenesis in female Cannabis sativa plants. Frontiers in Plant Science, 10, 350. https://doi.org/10.3389/fpls.2019.00350

Saloner, A., Sacks, M. M., Bernstein, N., et al. (2020). Response of medical cannabis (Cannabis sativa L.) to nitrogen supply under long photoperiod. Frontiers in Plant Science, 11, 572293. https://doi.org/10.3389/fpls.2020.572293

Toth, J. A., Stack, G. M., Carlson, C. H., & Smart, L. B. (2022). Identification and mapping of major-effect flowering time loci Autoflower1 and Early1 in Cannabis sativa L. Frontiers in Plant Science, 13, 991680. https://doi.org/10.3389/fpls.2022.991680

Dowling, C. A., Shi, J., Toth, J. A., Quade, M. A., Smart, L. B., McCabe, P. F., Schilling, S., & Melzer, R. (2024). A FLOWERING LOCUS T ortholog is associated with photoperiod-insensitive flowering in hemp (Cannabis sativa L.). The Plant Journal, 119(1), 383–403. https://doi.org/10.1111/tpj.16769

Punja, Z. K., Sutton, D. B., & Kim, T. (2023). Glandular trichome development, morphology, and maturation are influenced by plant age and genotype in high THC-containing cannabis (Cannabis sativa L.) inflorescences. Journal of Cannabis Research, 5, 12. https://doi.org/10.1186/s42238-023-00178-9

Collado, C. E., & Hernández, R. (2025). Vegetative and reproductive stage lighting interactions on flower yield, water use efficiency, terpenes, and cannabinoids of Cannabis sativa. Scientific Reports, 15, 43641. https://doi.org/10.1038/s41598-025-27437-4

Park, J., Collado, C. E., Lam, V. P., & Hernández, R. (2023). Flowering response of Cannabis sativa L. ‘Suver Haze’ under varying daylength-extension light intensities and durations. Horticulturae, 9, 526. https://doi.org/10.3390/horticulturae9050526

Naim-Feil, E., Elkins, A. C., Malmberg, M. M., Ram, D., Tran, J., et al. (2023). The cannabis plant as a complex system: Interrelationships between cannabinoid compositions, morphological, physiological and phenological traits. Plants, 12(3), 493. https://doi.org/10.3390/plants12030493

Yankova-Tsvetkova, E., Semerdjieva, I., Sikora, V., & Zheljazkov, V. D. (2025). Development of male and female gametophytes in Cannabis sativa L. cv. Helena (Cannabaceae). Agronomy, 15(2), 474. https://doi.org/10.3390/agronomy15020474

Questions and Answers

Q1: What do autoflower seedlings look like in week 1?
Most week 1 pictures show a tiny sprout with two round cotyledons and the first small serrated leaves starting to form. The stem is thin, and the plant is only a few centimeters tall.

Q2: What changes should you see in autoflowers in week 2 pictures?
Week 2 images usually show faster leaf growth, with 2–3 sets of true leaves and a thicker stem. The plant often looks busier, with new growth coming from the center.

Q3: What do healthy autoflowers typically look like in week 3 photos?
Week 3 pictures often show the plant entering early vegetation with more side branching, tighter node spacing, and broader leaves. Many plants look noticeably larger and more structured than in week 2.

Q4: What does early pre-flower look like in week 4 pictures?
In week 4 photos, many autoflowers show early pre-flower signs: small white hairs called pistils at the nodes where branches meet the main stem. The plant may also stretch upward and widen with more branches.

Q5: What do autoflower week 5 pictures usually show during early flower?
Week 5 images often show clear flowering development: more pistils, small bud sites forming at multiple nodes, and continued stretching. The top growth may look taller and more stacked.

Q6: What should buds look like in week 6 photos?
Week 6 pictures usually show buds getting thicker and more defined. You often see clusters of white pistils and swelling calyxes, and the plant starts looking less leafy at the top because bud sites become more prominent.

Q7: What does mid-flower typically look like in week 7 pictures?
Week 7 photos often show buds bulking up and becoming denser. Pistils may still be mostly white, but some plants begin showing a few darkening pistils. Frosty trichomes can start becoming visible as a sparkly look.

Q8: What changes are common in week 8 pictures as flowers mature?
Week 8 images often show heavier bud weight, more visible trichome coverage, and pistils starting to turn orange or brown on many strains. Some fan leaves may fade or yellow as the plant shifts energy into finishing.

Q9: What do late-flower autoflower pictures look like in week 9?
Week 9 photos often show mature-looking buds that are chunky and sticky-looking, with many pistils darkened and curled inward. Leaves may look more faded, and bud swelling can be very noticeable compared with week 7–8.

Q10: What do week 10+ autoflower harvest-ready pictures usually show?
Week 10+ images often show fully formed buds with less fresh white hair growth and a more finished, compact look. Many plants show more leaf fading and a heavy trichome presence, and the overall plant may look like it is slowing down rather than putting out new growth.

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