Sour DubbleStrain — Effects, Genetics, Grow Guide & Where to Buy in Canada
Sour Dubble is a hybrid cannabis strain with 26% THC and a 8-10 weeks flowering period. It is known for relaxed and happy effects and grows best indoors in 4x4 tents under 600W LED. Sour Dubble seeds are sold at Royal King Seeds Canada with discreet Canada-wide shipping and a high-germination guarantee.
Few cultivars carry the cult following Sour Dubble has built across the Canadian grow community — and the genetics live up to the reputation. It is a balanced hybrid (61% indica / 39% sativa) testing at roughly 26%% THC, with a flowering window of 8-10 weeks under a 12/12 photoperiod. What follows is a complete reference: terpene-led effects, genetic background, indoor and outdoor grow guidance, and the fastest way to get Sour Dubble seeds shipped to your province.
Sour Dubble Quick Stats
THC
26%%
Indica
61%
Sativa
39%
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
Sour DubbleEffects & Experience
Reported effects center on relaxed, happy, euphoric. Sour Dubble 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 Dubble
Growing Sour Dubble fits temperate and southern Canadian zones — coastal BC, Southern Ontario, and the Niagara region with mild September weather. Sour Dubble 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.
Sour DubbleLineage & Genetics
This cultivar comes from the Royal King Genetics breeding program — an in-house line developed for consistent results across both indoor and outdoor environments. Phenotype consistency is the result of multiple generations of selection rather than commercial seed-run breeding.
Where to Buy Sour Dubble Seeds in Canada
Sour Dubble 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.
Sour Dubble FAQ
Is Sour Dubble indica or sativa?+
Sour Dubble is a balanced hybrid with a 61% indica / 39% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Sour Dubble take to flower?+
Sour Dubble 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 Sour Dubble?+
Sour Dubble 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 Dubble good for beginner growers?+
Sour Dubble 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 Dubble seeds in Canada?+
Royal King Seeds ships Sour Dubble 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/sour-dubble-feminized — checkout accepts standard cards and Interac.