Royal KushStrain, Effects, Genetics, Grow Guide & Where to Buy
Royal 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 20% THC, with a flowering window of 75-85 days after sprouting (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 Royal Kush seeds in the USA" in one place.
Royal Kush Quick Stats
THC
20%
Indica
80%
Sativa
20%
Autoflower
Yes
Flowering
75-85 days after sprouting (seed to harvest)
Difficulty
intermediate
Indoor Yield
300-350 g/m2
Outdoor Yield
120-170 g/plant
Plant Height
60-90 cm
Royal KushEffects & Experience
Royal Kush is best known for creative, energetic, relaxed. The effects come on within the first 10 minutes and settle into a stable plateau that lasts 90 minutes to two hours at typical doses. Growers and users consistently note that the high stays true to its profile rather than drifting, what you feel in the first 20 minutes is what you have for the next 90.
Growing Royal Kush
Growing Royal Kush fits cooler climates where photoperiod strains struggle to finish before frost, autoflower timing is calendar-driven, not daylight-driven. Royal 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 300-350 g/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 120-170 g/plant. Expected plant height is 60-90 cm, with intermediate cultivation difficulty. Practical tips that move the needle: maintain canopy airflow with an oscillating fan moving air through the leaves, not just above them, to prevent powdery mildew; and apply low-stress training in week 2 of veg, bend the main stem horizontally and tie down to expose lower nodes. 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.
Royal KushLineage & Genetics
Royal 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 Royal Kush Seeds in the USA
Royal 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.
Royal Kush FAQ
Is Royal Kush indica or sativa?+
Royal 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 Royal Kush take to flower?+
Royal Kush flowers in 75-85 days after sprouting (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 Royal Kush?+
Royal Kush tests at approximately 20% 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 Royal Kush good for beginner growers?+
Royal 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 Royal Kush seeds in the USA?+
Royal King Seeds ships Royal Kush seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/royal-kush-auto.