Sour KushStrain, Effects, Genetics, Grow Guide & Where to Buy
Among the strains American growers consistently come back to, Sour Kush sits near the top of the list, but the data behind the hype is what holds growers' attention. It is a balanced hybrid (50% indica / 50% sativa) testing at roughly 26% THC, with a flowering window of 9-10 weeks under a 12/12 photoperiod. On this page we cover the effects, the lineage, the grow profile, and where to buy Sour Kush seeds in the United States.
Sour Kush Quick Stats
THC
26%
Indica
50%
Sativa
50%
Autoflower
No
Flowering
9-10 weeks
Difficulty
intermediate
Indoor Yield
600 g/m2
Outdoor Yield
1200 g/plant
Plant Height
Medium
Sour KushEffects & Experience
Reported effects center on relaxed, happy, euphoric. Sour Kush pulls toward a balanced state where neither head nor body dominates, a profile that holds up across phenotypes when the seeds are grown to their potential.
Growing Sour Kush
Growing Sour Kush fits outdoor growers with at least 130 frost-free days; the balanced structure handles both heat and cool nights. Sour Kush is photoperiod, which means you control when it flowers by switching from 18/6 (vegetative) to 12/12 (flowering). Most indoor growers veg for 4-6 weeks before the flip. Indoor yields land around 600 g/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 1200 g/plant. Expected plant height is Medium, 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 feed cal-mag from week 2 onward at 2-3 mL per gallon, most reverse-osmosis and soft tap water setups need it. 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.
Sour KushLineage & Genetics
Sour 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 Sour Kush Seeds in the USA
Sour 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.
Sour Kush FAQ
Is Sour Kush indica or sativa?+
Sour Kush is a balanced hybrid with a 50% indica / 50% sativa split. The effects lean balanced, neither dominantly head nor body.
How long does Sour Kush take to flower?+
Sour Kush flowers in 9-10 weeks once you flip to 12/12 light cycle. Outdoor harvest typically lands in late September to mid-October across most US zones.
What is the THC content of Sour Kush?+
Sour Kush tests at approximately 26% 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 Sour Kush good for beginner growers?+
Sour Kush is rated intermediate difficulty. Photoperiod genetics give you control over plant size and harvest timing, which means a bit more responsibility for getting the schedule right. Most growers with one harvest behind them handle this strain without difficulty.
Where can I buy Sour Kush seeds in the USA?+
Royal King Seeds ships Sour Kush seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/sour-kush-feminized.