The shortest version: Coastal Genetics's take on hybrid genetics, 20% THC, 10-11 weeks flowering, easy grow.

Lineage: Coastal Genetics' cookie/cake cross, dialed toward the sativa side at 70/30, gives Permafrost a growth structure that stays manageable while still pushing creative, clear-headed effects at 20% THC. The terpene profile runs earthy and pine-forward — nothing showy, just clean and consistent across harvests. Flowering wraps at 10–11 weeks, and indoor growers regularly pull 400–500g/m² without much intervention.

What makes this one worth noting is the mold resistance paired with that sativa-leaning structure — you're not babying it through a long finish or fighting humidity issues at week nine. It handles both indoor and outdoor environments without demanding a specialist's attention, which is exactly why it earned an easy difficulty rating. If you want a straightforward feminized grow that doesn't sacrifice terpene quality for convenience, this is a solid pick for intermediate growers ready to step up yield without adding complexity.

Genetics & Lineage

Permafrost traces its genetics to 70% Sativa/30% Indica (Coastal Genetics). This hybrid-dominant feminized seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by Coastal 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

Permafrost 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 Permafrost

Permafrost 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 10-11 weeks with yields of 400-500g/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

Permafrost 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, Permafrost 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 Permafrost?

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 Permafrost from Seennabis?

When you purchase Permafrost through Seennabis, you are buying directly from Coastal Genetics — California coastal craft breeder. Every order includes verified genetics, discreet shipping, and responsive seller support.