CorkscrewStrain, Effects, Genetics, Grow Guide & Where to Buy
Among the strains American growers consistently come back to, Corkscrew sits near the top of the list, but the data behind the hype is what holds growers' attention. It is a balanced hybrid (57% indica / 43% sativa) testing at roughly 19% THC, with a flowering window of 55-65 days as an autoflower. On this page we cover the effects, the lineage, the grow profile, and where to buy Corkscrew seeds in the United States.
Corkscrew Quick Stats
THC
19%
Indica
57%
Sativa
43%
Autoflower
Yes
Flowering
55-65 days
Difficulty
intermediate
Indoor Yield
16-19 oz/m2
Outdoor Yield
3-6 oz/plant
Plant Height
2-3 feet
CorkscrewEffects & Experience
The dominant effects of Corkscrew are euphoric, creative, calm, and the experience is more nuanced than a simple high/low/sedating label would suggest. Onset is gradual rather than abrupt, the peak holds for roughly an hour, and the comedown is smooth, which is why this strain shows up in so many "daily driver" lists from experienced consumers.
Growing Corkscrew
Growing Corkscrew fits short outdoor seasons in the upper Midwest, Pacific Northwest, and Northeast, autoflower genetics finish in 70-90 days from seed regardless of latitude. Corkscrew 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 16-19 oz/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 3-6 oz/plant. Expected plant height is 2-3 feet, 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 top once at the 4th node to encourage 4-6 even main colas instead of one dominant cola. 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.
CorkscrewLineage & Genetics
Corkscrew 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 Corkscrew Seeds in the USA
Corkscrew 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.
Corkscrew FAQ
Is Corkscrew indica or sativa?+
Corkscrew is a balanced hybrid with a 57% indica / 43% sativa split. The effects lean balanced, neither dominantly head nor body.
How long does Corkscrew take to flower?+
Corkscrew flowers in 55-65 days from seed, since autoflower genetics ignore light cycle. Outdoor harvest typically lands 70-90 days after planting.
What is the THC content of Corkscrew?+
Corkscrew tests at approximately 19% 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 Corkscrew good for beginner growers?+
Corkscrew 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 Corkscrew seeds in the USA?+
Royal King Seeds ships Corkscrew seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/corkscrew-auto.