Quick read: 21% THC, 150-220cm mature height, 7-9 weeks bloom. Genetics: 55% Sativa/45% Indica (Mendocino Farms). Difficulty: moderate.

Lineage: Mendo Breath × Headband × Trainwreck, collapsed into an autoflowering format that finishes in 7–9 weeks regardless of your light schedule. That parentage pulls in opposing directions — the Trainwreck side keeps growth energetic and resin production steady, while the Indica fraction rounds out the 21% THC into something functional rather than overwhelming. Indoors you're looking at roughly 300 g/m², which is a reasonable return for a moderate-difficulty auto that doesn't demand a lot of fussing. The aroma profile stays true to the Jack Herer name: dry pine resin with a soil-and-bark earthiness underneath, not a candy terp in sight.

The moderate difficulty rating is honest — she responds well to basic training like LST but won't punish you for skipping it. A solid pick for growers in shorter Canadian seasons who want a fast-finishing, pine-forward variety without babysitting a photoperiod through September.

Genetics & Lineage

Jack Herer Auto traces its genetics to 55% Sativa/45% Indica (Mendocino Farms). This hybrid-dominant autoflower seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by Mendocino Farms, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily relaxed and euphoric effects, making this strain ideal for evening use and unwinding after a long day. The body-centered stone builds gradually, easing tension and promoting deep physical relaxation. With THC levels reaching 21%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Jack Herer Auto delivers THC levels of 21%, placing it in the moderate-to-strong range that most regular consumers find comfortable. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within minutes with a balanced head-and-body experience that evolves over time.

Growing Jack Herer Auto

Jack Herer Auto is rated as moderate difficulty, making it suitable for growers with some experience. Basic knowledge of nutrient schedules, pH management, and environmental controls will help maximize results.

Indoor Growing: Expect a flowering time of 7-9 weeks with yields of 300g/m2. Plants typically reach 150-220cm indoors. Standard training techniques like topping and LST will help manage height and improve light penetration. Maintain temperatures between 68-80°F with relative humidity around 45-55% during flowering.

Outdoor Growing: This versatile strain performs well in both indoor and outdoor environments. Outdoor growers in warm climates can expect harvest from late September through October. Watch for humidity during late flowering to prevent bud rot, especially with dense flower formations.

Flavor, Aroma & Terpene Profile

Jack Herer Auto features a earthy, pine terpene profile that develops complexity throughout the flowering cycle. Sharp forest and resin notes create a fresh, invigorating flavor with earthy depth. The aroma intensifies significantly during the final 2-3 weeks of flowering — carbon filtration is recommended for indoor grows requiring discretion.

Medical Benefits

While individual experiences vary, Jack Herer Auto is commonly reported to help with stress relief, chronic pain, insomnia, and muscle tension. The deeply relaxing effects make it a popular choice among medical users seeking nighttime relief. As with any cannabis strain, start with a low dose and increase gradually. Consult a healthcare professional before using cannabis for medical purposes.

Who Should Grow Jack Herer Auto?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Jack Herer Auto from Seennabis?

When you purchase Jack Herer Auto through Seennabis, you are buying directly from Mendocino Farms — NorCal farm breeder from the Emerald Triangle — Mendocino County. Every order includes verified genetics, discreet shipping, and responsive seller support.