STRNG Seeds – Sour Diesel Auto

Sour Diesel Auto offers the signature fuel-heavy aroma and energizing personality of the original strain — but in a faster, more compact, and beginner-friendly format. It’s great for growers who love bold flavors without the long wait.

Look for 70–90% dark pistils, firm buds, and mostly cloudy trichomes. A shift in scent from bright to deep, gassy richness is another good indicator.

The scent is sharp, pungent, and unmistakably sour — with notes of diesel, citrus peel, and a faint earthiness. It intensifies rapidly in the second half of flowering.

Expect a tangy, gassy inhale with lemon-zest sharpness and a spicy herbal exhale. A proper cure smooths out the edges while keeping the trademark diesel bite.

Not much. Light defoliation near the bottom can help airflow, but leave most leaves intact — they fuel rapid growth in the short life cycle.

Most phenotypes finish in about 9–10 weeks from germination. Some slightly longer-running expressions may take up to 11 weeks depending on light and NUTRIENTS.

Yes. The aroma is loud and persistent, especially in smaller spaces. A carbon filter is strongly recommended to manage the powerful fuel-forward fragrance.

It stays compact — usually 60–100 cm tall — and completes its cycle quickly. With some odor control, it’s a great option for small outdoor or private urban gardens.

Absolutely. A slow, proper cure brings out that classic diesel tang, layered with lemon, pine, and subtle peppery spice. It’s a great payoff for careful post-harvest work.

Yes. Its relatively short life cycle helps it finish before fall moisture becomes a risk, making it a solid option for short-season outdoor grows.

No. It flowers automatically based on age, not light exposure. Most growers use 18–20 hours of light daily throughout the full lifecycle.

Yes. Its fast cycle allows for 2–3 runs per season in warm climates — ideal for maximizing outdoor space and harvest frequency.

Skip topping. Use low-stress training (LST) early in veg to spread the canopy and encourage even light distribution. Autos do best with minimal stress.

Definitely. It’s forgiving, aromatic, and easy to manage. Just make sure to plant in the final pot and avoid overwatering in the first few weeks.

Indoors, expect 300–400g/m². Outdoors, 50–100g per plant is common, especially with good sun exposure and proper care.

3–5 gallon (11–19L) containers work best. Autos don’t like being transplanted, so start them in their final container for a healthy root zone.

Start around week 3–4, once you see white pistils forming. Use a light bloom formula first and gradually increase based on plant response.

Sour Diesel Auto prefers 21–27°C (70–80°F). Keep humidity below 50% during bloom to avoid moisture issues in dense bud sites.

Let the top 3–5 cm of soil dry between waterings. Avoid overwatering early in life — consistent, moderate hydration is key for healthy growth.

Dry slowly at 60% RH for 7–10 days, then cure in jars for 3–4 weeks. This brings out the full sour-gas expression and improves smoothness.