Quick read: 17-23% THC, 50-80cm mature height, 9-11 weeks total bloom. Genetics: Amnesia × Cinderella 99 and Apple Fritter. Difficulty: easy.

Smell-first: crack a jar of this and the room splits between ripe fruit and classic skunk — sweet on the inhale, funky on the way out. That terpene contrast comes from a lineage that pulls Amnesia and Cinderella 99 brightness up against Apple Fritter's heavier, dessert-leaning base. Jack Herer Automatic runs 9–11 weeks seed to harvest with no light-schedule management required, making it a workable choice whether you're running a tent indoors or a sunny patio in a short Canadian summer. THC typically tests between 17–23%, and indoor growers consistently pull 450–600 g/m² when feeding is dialed in — solid numbers for an autoflower without demanding much technical effort.

The plant stays manageable in size and tolerates the kind of temperature swings a northern grow-op or an Ontario fall can throw at it. Difficulty is rated easy, so first-time autoflower growers won't be fighting the plant — just training it lightly and letting the genetics do the work.

Genetics & Lineage

Jack Herer Automatic traces its genetics to Amnesia × Cinderella 99 and Apple Fritter. 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 Sensi Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily euphoric and relaxed 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 23%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Jack Herer Automatic delivers THC levels of 17-23%, 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 Automatic

Jack Herer Automatic is rated as easy difficulty, making it an excellent choice for first-time growers. The plants are resilient, forgiving of common mistakes like overwatering or inconsistent feeding schedules.

Indoor Growing: Expect a flowering time of 9-11 weeks total with yields of 450-600g/m². Plants typically reach 50-80cm indoors. This strain responds exceptionally well to SCROG (Screen of Green) and LST (Low Stress Training), which can boost yields significantly. 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 the dense, heavy buds this strain produces.

Flavor, Aroma & Terpene Profile

Jack Herer Automatic features a fruity, skunky, sweet, earthy terpene profile that develops complexity throughout the flowering cycle. Sweet berry and grape notes dominate the inhale, with a sugary exhale that lingers on the palate. 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 Automatic 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 Automatic?

This strain is ideal for beginner growers looking for a reliable, low-maintenance plant that delivers consistent results without advanced techniques. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Jack Herer Automatic from Seennabis?

When you purchase Jack Herer Automatic through Seennabis, you are buying directly from Sensi Seeds — The world's oldest cannabis seed bank, founded in Amsterdam in 1985. Every order includes verified genetics, discreet shipping, and responsive seller support. Sensi Seeds has completed over 177 sales.