Sour DubbleStrain, Effects, Genetics, Grow Guide & Where to Buy
Few cultivars carry the cult following Sour Dubble has built across the US grow community , and the appeal is easy to explain. It is a balanced hybrid (61% indica / 39% sativa) testing at roughly 26% THC, with a flowering window of 8-10 weeks from seed as an autoflower. 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 state.
Sour Dubble Quick Stats
THC
26%
Indica
61%
Sativa
39%
Autoflower
Yes
Flowering
8-10 weeks from seed
Difficulty
intermediate
Indoor Yield
450-550 g/m²
Outdoor Yield
500-700 g/plant
Plant Height
60-100 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 cooler climates where photoperiod strains struggle to finish before frost, autoflower timing is calendar-driven, not daylight-driven. Sour Dubble 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 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 60-100 cm, with intermediate cultivation difficulty. Practical tips that move the needle: feed cal-mag from week 2 onward at 2-3 mL per gallon, most reverse-osmosis and soft tap water setups need it; and defoliate strategically on day 21 of flower; remove fan leaves blocking interior bud sites without stripping the plant. The most common challenge growers report is training timing, top at the 4th node, not earlier and not later, for the best canopy distribution.
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 the USA
Sour Dubble seeds ship from Royal King Seeds to all 50 US states with discreet packaging and a 95% germination guarantee. Average delivery is 3-5 business days, with the fastest routes typically reaching Alaska, Arizona, Arkansas, California, Colorado.
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 from seed from seed, since autoflower genetics ignore light cycle. Outdoor harvest typically lands 70-90 days after planting.
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. 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 Sour Dubble seeds in the USA?+
Royal King Seeds ships Sour Dubble seeds to all 50 US states with discreet packaging, 3-5 day delivery, and a 95% germination guarantee. The product page is at https://royalkingseeds.us/sour-dubble-auto, checkout accepts standard cards, Apple Pay, and crypto.