Casper OGStrain, Effects, Genetics, Grow Guide & Where to Buy
Casper OG 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 (71% indica / 29% sativa) testing at roughly 16% THC, with a flowering window of 8-10 weeks from seed as an autoflower. This guide pulls together the lineage, the effects, the grow data, and the practical answer to "where can I buy Casper OG seeds in the USA" in one place.
Casper OG Quick Stats
THC
16%
Indica
71%
Sativa
29%
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
Casper OGEffects & Experience
Reported effects center on euphoric, uplifted, calm. Casper OG 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 Casper OG
Growing Casper OG fits cooler climates where photoperiod strains struggle to finish before frost, autoflower timing is calendar-driven, not daylight-driven. Casper OG 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: maintain canopy airflow with an oscillating fan moving air through the leaves, not just above them, to prevent powdery mildew; and feed cal-mag from week 2 onward at 2-3 mL per gallon, most reverse-osmosis and soft tap water setups need it. 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.
Casper OGLineage & Genetics
Casper OG is a Royal King Genetics in-house cross. The parental selection was chosen for compact stature and resin density, then stabilized over multiple generations to lock in phenotype expression. Seeds run true to the description on this page rather than spreading across a wide range of expressions.
Where to Buy Casper OG Seeds in the USA
Casper OG 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.
Casper OG FAQ
Is Casper OG indica or sativa?+
Casper OG is a indica-dominant with a 71% indica / 29% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Casper OG take to flower?+
Casper OG 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 Casper OG?+
Casper OG tests at approximately 16% 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 Casper OG good for beginner growers?+
Casper OG 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 Casper OG seeds in the USA?+
Royal King Seeds ships Casper OG 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/casper-og-auto, checkout accepts standard cards, Apple Pay, and crypto.