Blackberry KushStrain, Effects, Genetics, Grow Guide & Where to Buy
Blackberry Kush is one of the most-searched cannabis strains in the United States, but the data behind the hype is what holds growers' attention. It is a indica-dominant (80% indica / 20% sativa) testing at roughly 18% THC, with a flowering window of 10-11 weeks seed to harvest as an autoflower. This guide pulls together the lineage, the effects, the grow data, and the practical answer to "where can I buy Blackberry Kush seeds in the USA" in one place.
Blackberry Kush Quick Stats
THC
18%
Indica
80%
Sativa
20%
Autoflower
Yes
Flowering
10-11 weeks seed to harvest
Difficulty
intermediate
Indoor Yield
400-450 g/m2
Outdoor Yield
50-100 g/plant
Plant Height
around 0.75 m (0.5-1 m)
Blackberry KushEffects & Experience
Reported effects center on happy, relaxed, sleepy. Blackberry Kush pulls toward physical relaxation and a quiet, observational headspace, a profile that holds up across phenotypes when the seeds are grown to their potential.
Growing Blackberry Kush
Growing Blackberry Kush fits cooler climates where photoperiod strains struggle to finish before frost, autoflower timing is calendar-driven, not daylight-driven. Blackberry Kush runs on an 18/6 light schedule from seed to harvest, autoflower genetics ignore photoperiod, so there is no flip and no light-cycle change. Indoor yields land around 400-450 g/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 50-100 g/plant. Expected plant height is around 0.75 m (0.5-1 m), with intermediate cultivation difficulty. Practical tips that move the needle: apply low-stress training in week 2 of veg, bend the main stem horizontally and tie down to expose lower nodes; and defoliate strategically on day 21 of flower; remove fan leaves blocking interior bud sites without stripping the plant. The most common challenge growers report is calcium and magnesium supplementation under bright LED lighting; cal-mag at 2-3 mL/gal from week 2 prevents the most common deficiency.
Blackberry KushLineage & Genetics
Blackberry Kush is offered in the Royal King Seeds catalog. Read the description on this page as a general profile rather than a guarantee of your specific pack; expect some phenotype variation between packs.
Where to Buy Blackberry Kush Seeds in the USA
Blackberry Kush seeds ship from Royal King Seeds from within the United States. Estimated delivery is approximately 5-7 business days; actual timing varies by destination and carrier.
Blackberry Kush FAQ
Is Blackberry Kush indica or sativa?+
Blackberry Kush is a indica-dominant with a 80% indica / 20% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Blackberry Kush take to flower?+
Blackberry Kush flowers in 10-11 weeks seed to harvest from seed, since autoflower genetics ignore light cycle. Outdoor harvest typically lands 70-90 days after planting.
What is the THC content of Blackberry Kush?+
Blackberry Kush tests at approximately 18% THC when grown to its potential. Real-world numbers depend on grow conditions, harvest timing, and curing, well-grown phenotypes can land at the high end of that range, while poorly cured flower tests lower.
Is Blackberry Kush good for beginner growers?+
Blackberry Kush is rated intermediate difficulty. The autoflower genetics simplify the process, no light schedule changes and a fast seed-to-harvest timeline make it forgiving for first-time growers. Most growers with one harvest behind them handle this strain without difficulty.
Where can I buy Blackberry Kush seeds in the USA?+
Royal King Seeds ships Blackberry Kush seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/blackberry-kush-auto.