The specs in one line: 18-25% THC, <1% CBD, 8-10 weeks flowering, 500-700g/m² reported. Best indoor or outdoor. advanced grow.

Lineage: Wedding Cake × Black Domina — two heavy indica parents that together push THC testing consistently into the 18–25% range, which partly explains why this one sits in the advanced difficulty category. The plant itself is dense and bushy, and without solid canopy management — topping early, keeping airflow honest — you'll fight moisture problems before you ever see harvest. Run it right indoors, though, and 500–700 g/m² at the 8–10 week mark is genuinely achievable. Outdoors it prefers a long, warm finish; growers in southern BC and Ontario's greenhouse belt report the best results, while shorter-season regions should plan around a light-dep setup.

Flavour runs sweet and fruity with a citrus edge that sharpens as the cure progresses — not subtle, and the smell during late flower will fill a room. Best suited to experienced growers who already have environmental controls dialled in and want a high-yielding indica-dominant plant worth the extra attention.

Genetics & Lineage

Blackberry Cake traces its genetics to Wedding Cake × Black Domina. 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 Sensi Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily relaxed and sleepy 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 25%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

Blackberry Cake delivers THC levels of 18-25%, 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 Blackberry Cake

Blackberry Cake is rated as advanced difficulty, making it best suited for experienced cultivators who understand advanced techniques. This strain rewards meticulous attention to detail with exceptional results.

Indoor Growing: Expect a flowering time of 8-10 weeks with yields of 500-700g/m². Plants typically reach 60-100cm 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 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 the dense, heavy buds this strain produces.

Flavor, Aroma & Terpene Profile

Blackberry Cake features a fruity, citrus, 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, Blackberry Cake 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 Blackberry Cake?

This strain is ideal for advanced cultivators and breeders seeking exceptional phenotypes and willing to invest the extra care required. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Blackberry Cake from Seennabis?

When you purchase Blackberry Cake 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.