Silver HazeStrain, Effects, Genetics, Grow Guide & Where to Buy
Silver Haze earned its place in the modern cannabis canon for a reason , and the appeal is easy to explain. It is a sativa-dominant (10% indica / 90% 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 Silver Haze seeds delivered anywhere in the US.
Silver Haze Quick Stats
THC
22%
Indica
10%
Sativa
90%
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
Silver HazeEffects & Experience
Reported effects center on energetic, relaxed, uplifted. Silver Haze pulls toward mental clarity, conversation, and a light, mobile body feel, a profile that holds up across phenotypes when the seeds are grown to their potential.
Growing Silver Haze
Growing Silver Haze fits subtropical and Mediterranean climates with dry late-summer weather to support the longer flower window. Silver Haze 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: defoliate strategically on day 21 of flower; remove fan leaves blocking interior bud sites without stripping the plant; and top once at the 4th node to encourage 4-6 even main colas instead of one dominant cola. The most common challenge growers report is training timing, top at the 4th node, not earlier and not later, for the best canopy distribution.
Silver HazeLineage & Genetics
This cultivar comes from the Royal King Genetics breeding program, an in-house line developed for long-season outdoor expression and complex terpene profiles. Phenotype consistency is the result of multiple generations of selection rather than commercial seed-run breeding.
Where to Buy Silver Haze Seeds in the USA
Silver Haze 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.
Silver Haze FAQ
Is Silver Haze indica or sativa?+
Silver Haze is a sativa-dominant with a 10% indica / 90% sativa split. The effects lean toward mental clarity, mood lift, and conversation.
How long does Silver Haze take to flower?+
Silver Haze 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 US zones.
What is the THC content of Silver Haze?+
Silver Haze 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 Silver Haze good for beginner growers?+
Silver Haze 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 Silver Haze seeds in the USA?+
Royal King Seeds ships Silver Haze 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/silver-haze-feminized, checkout accepts standard cards, Apple Pay, and crypto.