From the lab panel — 22% THC, <2% CBD. From Canadian grower reports — 400g/m2 yield, citrus/sweet dominant in cured flower. moderate grow.

Lineage: Chernobyl traces back to Coastal Genetics' cookie/cake/runtz work, pushed toward an 80/20 sativa-dominant ratio that shows up clearly in how the plant grows—long internodal spacing, a pronounced stretch, and a finish that still lands at 8–9 weeks despite the sativa lean. At 22% THC the effect runs upbeat and clear-headed rather than couch-heavy, which is why a lot of home growers reach for it on daytime grows. Flavors sit in citrus and sweet territory, nothing funky or polarizing, which makes curing straightforward.

Yield comes in around 400 g/m² indoors under dialled conditions, and the mold resistance Coastal Genetics built into the line is worth noting for Canadian growers running outdoor or greenhouse runs in humid late-summer weather. Difficulty is rated moderate, so this isn't a first-season plant, but it's not finicky either. Best suited to intermediate growers who want a fast-finishing sativa without babysitting the humidity charts all September.

Genetics & Lineage

Chernobyl traces its genetics to 80% Sativa/20% Indica (Coastal Genetics). This sativa-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 22%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Chernobyl delivers THC levels of 22%, 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, starting as a cerebral buzz that gradually expands.

Growing Chernobyl

Chernobyl 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 8-9 weeks with yields of 400g/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

Chernobyl features a citrus, sweet terpene profile that develops complexity throughout the flowering cycle. A smooth, candy-like sweetness defines the flavor, with subtle complexity on the exhale. 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, Chernobyl 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 Chernobyl?

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 Chernobyl from Seennabis?

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