Spec sheet first — strain: hybrid, seed type: autoflower, THC: 20%, yield band: medium, environment: indoor or outdoor.

Advanced Genetics lists this at $29.72 — the lowest base price in the comparison ($30.16 floor). Pack options: 3-seed at $29.72, 5-seed at $44.99, plus larger sizes.

Smell-first, this one lands somewhere between damp forest floor and ripe stone fruit — earthy base, soft sweetness layered on top, nothing sharp or chemical. Jack Frost Auto sits at 20% THC with a true 50/50 Indica-Sativa split from Advanced Genetics, and it moves fast: most runs wrap up in 8–9 weeks from sprout to harvest without any light-schedule management on your end. Indoor growers are pulling around 350g/m², which is solid for an autoflower that doesn't ask much in return.

The plant stays manageable in height and tolerates the kinds of minor fluctuations — humidity swings, missed feedings, inconsistent temps — that trip up more finicky genetics. Effects run upbeat and clear-headed before settling into a relaxed finish. A good pick for newer growers who want a quick turnaround and respectable potency, or for experienced cultivators filling a short gap in their grow calendar.

Genetics & Lineage

Jack Frost Auto traces its genetics to 50% Indica/50% Sativa (Advanced Genetics). 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 Advanced Genetics, 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 20%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Jack Frost Auto delivers THC levels of 20%, 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 Frost Auto

Jack Frost Auto 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 8-9 weeks with yields of 350g/m2. Plants typically reach 100-160cm 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 Frost Auto features a earthy, fruity, sweet 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 Frost 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 Frost Auto?

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 Frost Auto from Seennabis?

When you purchase Jack Frost Auto through Seennabis, you are buying directly from Advanced Genetics — American craft breeder behind potent hybrids like Slurricane, Member Berries, and Permanent Marker. Every order includes verified genetics, discreet shipping, and responsive seller support.