Coastal Genetics brings California coastal sun-grown genetics to Black Triangle, a feminized indica built from cookie/cake/runtz hybrid lineage that delivers fast finishes and reliable mold resistance. At 26% THC, this strain produces euphoric, relaxed effects that lean toward sleepiness, with a flavor profile balancing citrus brightness against earthy pine and subtle sweetness. Expect 450–550 g/m² yields within 7–9 weeks from plants reaching 60–100cm, making it manageable for moderate-skill cultivators navigating the stretch and feeding demands of a robust indica. The sun-grown heritage shows in full-spectrum terpenes and resilience that rewards attention to detail. Explore more from the Coastal Genetics catalog or compare it with Snowcap Dream for another standout from this craft breeder. For similar fast-finishing options, check available feminized seeds.

Genetics & Lineage

Black Triangle traces its genetics to Triangle Kush x '88 G13 Hashplant (Coastal Genetics). This indica-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 26%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

Black Triangle delivers THC levels of 26%, placing it in the high-potency category alongside powerhouses like Gorilla Glue and Girl Scout Cookies. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within 5-10 minutes, settling into the body as a warm, heavy relaxation.

Growing Black Triangle

Black Triangle 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 450–550 g/m2. Plants typically reach 60-100cm 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 40-50% 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

Black Triangle features a citrus, earthy, pine, 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, Black Triangle 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 Black Triangle?

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 Black Triangle from Seennabis?

When you purchase Black Triangle through Seennabis, you are buying directly from Coastal Genetics — California coastal craft breeder. Every order includes verified genetics, discreet shipping, and responsive seller support. Coastal Genetics has completed over 37,750 sales with a 4.7-star rating from 2,832 verified reviews.