UWStrain — Effects, Genetics, Grow Guide & Where to Buy in Canada
UW is a indica cannabis strain with 22%% THC and a 8-10 weeks flowering period. It is known for happy and relaxed effects and grows best in indoor tents and cooler Canadian outdoor zones. UW seeds are sold at Royal King Seeds Canada with discreet Canada-wide shipping and a high-germination guarantee.
UW earned its place in the modern cannabis canon for a reason — and the genetics live up to the reputation. It is a indica-dominant (80% indica / 20% sativa) testing at roughly 22%%% THC, with a flowering window of 8-10 weeks under a 12/12 photoperiod. Below we walk through what to expect from the high, how the plant grows in a tent or outdoor garden, the parental genetics behind the cultivar, and how to get UW seeds delivered anywhere in Canada.
UW Quick Stats
THC
22%%%
Indica
80%
Sativa
20%
Autoflower
No
Flowering
8-10 weeks
Difficulty
intermediate
Indoor Yield
450-550 g/m²
Outdoor Yield
500-700 g/plant
Plant Height
120-180 cm
UWEffects & Experience
UW is best known for happy, relaxed, sleepy. 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 UW
Growing UW fits indoor growers in compact spaces; indica genetics stay short and bushy without aggressive training. UW 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 450-550 g/m² under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 500-700 g/plant. Expected plant height is 120-180 cm, with intermediate cultivation difficulty. Practical tips that move the needle: top once at the 4th node to encourage 4-6 even main colas instead of one dominant cola; and flush nutrients in the final 10-14 days for cleaner flavor; trichomes finish properly even on plain pH-adjusted water. The most common challenge growers report is late-flower humidity if your indoor RH climbs above 55% during the final two weeks.
UWLineage & Genetics
This cultivar comes from the Royal King Genetics breeding program — an in-house line developed for fast finishing and heavy yields under indoor conditions. Phenotype consistency is the result of multiple generations of selection rather than commercial seed-run breeding.
Where to Buy UW Seeds in Canada
UW seeds ship from Royal King Seeds to every Canadian province and territory with discreet packaging and a high-germination guarantee. Average delivery is 3-7 business days, with the fastest routes typically reaching British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Northwest Territories.
UW FAQ
Is UW indica or sativa?+
UW 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 UW take to flower?+
UW flowers in 8-10 weeks once you flip to 12/12 light cycle. Outdoor harvest typically lands in late September to mid-October across most Canadian growing zones.
What is the THC content of UW?+
UW tests at approximately 22%%% 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 UW good for beginner growers?+
UW 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 UW seeds in Canada?+
Royal King Seeds ships UW seeds to every Canadian province and territory with discreet packaging, tracked delivery, and a high-germination guarantee. The product page is at https://royalkingseeds.ca/uw-feminized — checkout accepts standard cards and Interac.