STRNG Seeds – ATF (Alaskan Thunder Fuck) Auto

It preserves the bold personality and pungent aroma of the original ATF in a much faster, more compact format. This auto version gives growers an authentic experience in just a few short weeks.

The smell starts earthy and herbal, then builds into a strong blend of mint, pine, and citrus. Late in flower, it has a sharp, peppery edge that really stands out in smaller grow spaces.

It delivers a crisp, fresh inhale with pine and lemon, followed by a slightly funky, menthol-like exhale. Some phenos even carry a faint sweetness similar to licorice or cold herbs.

Yes. Buds are well-formed and not overly leafy, making trimming straightforward. The resin content can be sticky, so gloves are recommended during the process.

Yes, especially in smaller tents. While not overpowering, it has a strong, herbal-pine aroma that becomes more intense as harvest approaches. Odor control is recommended indoors.

Most phenotypes finish between 9 and 10 weeks from seed, with some pushing to week 11 depending on environment and grow style.

Look for cloudy trichomes with some beginning to turn amber. Pistils should be darkened and curled, and the plant’s strong citrus-pine scent will peak.

The buds are slightly smaller but still frosty and well-formed, with long pistils and a sparkling trichome finish. Expect bright greens and occasional hints of lavender near harvest.

Adventurous growers looking for a fast, flavorful strain with a bold profile. It’s ideal for those who want something off the beaten path without sacrificing ease or speed.

Yes. Its northern genetics give it some resistance to cooler nights and variable weather, making it well-suited for short summer runs or northern climates.

No. It flowers automatically based on age, not light exposure. Most growers use 18–20 hours of light daily from seed to harvest for best results.

Yes. In warmer climates, growers can easily fit two or more ATF Auto cycles between spring and fall, especially with early planting.

Topping is not recommended due to its limited vegetative window. Instead, apply gentle LST early on to encourage even canopy development.

It stays relatively compact — usually between 60–100 cm tall — but benefits from good lateral space and airflow. A small tent or raised bed works well.

Yes. While bold in character, it’s not difficult to grow. It handles minor stress well and doesn’t require complex feeding schedules, making it accessible for beginners.

A 3–5 gallon (11–19L) container is ideal. Plant directly into the final pot to avoid transplant shock and encourage strong root development.

Around weeks 3–4, once the plant shows signs of pre-flowering. Gradually increase phosphorus and potassium to support bud formation without overfeeding.

Water when the top few centimeters of soil are dry. Autoflowers like steady, moderate moisture but dislike wet feet, so avoid overwatering.

Keep temperatures between 21–27°C (70–80°F) for optimal performance. Cooler night temps can enhance resin production and color late in flower.

A slow cure over 3–4 weeks in sealed jars will concentrate the minty-pine aroma. Keep jars in a cool, dark place and burp them daily during the first 10 days.