Silverback GorillaStrain, Effects, Genetics, Grow Guide & Where to Buy
Silverback Gorilla is one of the most-searched cannabis strains in the United States, but the data behind the hype is what holds growers' attention. It is a indica-dominant (74% indica / 26% sativa) testing at roughly 20% THC, with a flowering window of 8-9 weeks under a 12/12 photoperiod. This guide pulls together the lineage, the effects, the grow data, and the practical answer to "where can I buy Silverback Gorilla seeds in the USA" in one place.
Silverback Gorilla Quick Stats
THC
20%
Indica
74%
Sativa
26%
Autoflower
No
Flowering
8-9 weeks
Difficulty
intermediate
Indoor Yield
700-800 g/m2
Outdoor Yield
450–650 g/plant
Plant Height
Medium
Silverback GorillaEffects & Experience
Reported effects center on relaxed, sleepy, happy. Silverback Gorilla pulls toward physical relaxation and a quiet, observational headspace, a profile that holds up across phenotypes when the seeds are grown to their potential.
Growing Silverback Gorilla
Growing Silverback Gorilla fits shorter outdoor seasons, Pacific Northwest, New England, Great Lakes, where 7-9 week flowering finishes ahead of October rains. Silverback Gorilla 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 700-800 g/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 450–650 g/plant. Expected plant height is Medium, with intermediate cultivation difficulty. Practical tips that move the needle: maintain canopy airflow with an oscillating fan moving air through the leaves, not just above them, to prevent powdery mildew; 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 calcium and magnesium supplementation under bright LED lighting; cal-mag at 2-3 mL/gal from week 2 prevents the most common deficiency.
Silverback GorillaLineage & Genetics
Silverback Gorilla 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 Silverback Gorilla Seeds in the USA
Silverback Gorilla 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.
Silverback Gorilla FAQ
Is Silverback Gorilla indica or sativa?+
Silverback Gorilla is a indica-dominant with a 74% indica / 26% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Silverback Gorilla take to flower?+
Silverback Gorilla flowers in 8-9 weeks once you flip to 12/12 light cycle. Outdoor harvest typically lands in late September to mid-October across most US zones.
What is the THC content of Silverback Gorilla?+
Silverback Gorilla 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 Silverback Gorilla good for beginner growers?+
Silverback Gorilla 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 Silverback Gorilla seeds in the USA?+
Royal King Seeds ships Silverback Gorilla seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/silverback-gorilla-feminized.