Ace of SpadesStrain, Effects, Genetics, Grow Guide & Where to Buy
Few cultivars carry the cult following Ace of Spades has built across the US grow community , and the appeal is easy to explain. It is a indica-leaning hybrid (66% indica / 34% sativa) testing at roughly 20% THC, with a flowering window of 8-10 weeks 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 Ace of Spades seeds shipped to your state.
Ace of Spades Quick Stats
THC
20%
Indica
66%
Sativa
34%
Autoflower
Yes
Flowering
8-10 weeks
Difficulty
intermediate
Indoor Yield
600 g/m²
Outdoor Yield
500 g per plant
Plant Height
Medium (100-150 cm)
Ace of SpadesEffects & Experience
The dominant effects of Ace of Spades are relaxed, sleepy, happy, 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 Ace of Spades
Growing Ace of Spades fits short outdoor seasons in the upper Midwest, Pacific Northwest, and Northeast, autoflower genetics finish in 70-90 days from seed regardless of latitude. Ace of Spades 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 600 g/m² under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 500 g per plant. Expected plant height is Medium (100-150 cm), with intermediate cultivation difficulty. Practical tips that move the needle: defoliate strategically on day 21 of flower; remove fan leaves blocking interior bud sites without stripping the plant; 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 training timing, top at the 4th node, not earlier and not later, for the best canopy distribution.
Ace of SpadesLineage & Genetics
This cultivar is part of the Royal King Seeds curated catalog. Read the description as a general profile rather than a guarantee of your specific pack.
Where to Buy Ace of Spades Seeds in the USA
Ace of Spades 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.
Ace of Spades FAQ
Is Ace of Spades indica or sativa?+
Ace of Spades is a indica-leaning hybrid with a 66% indica / 34% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Ace of Spades take to flower?+
Ace of Spades flowers in 8-10 weeks from seed, since autoflower genetics ignore light cycle. Outdoor harvest typically lands 70-90 days after planting.
What is the THC content of Ace of Spades?+
Ace of Spades tests at approximately 20% 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 Ace of Spades good for beginner growers?+
Ace of Spades 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 Ace of Spades seeds in the USA?+
Royal King Seeds ships Ace of Spades seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/ace-of-spades-auto.