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 55-65 days 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
55-65 days
Difficulty
intermediate
Indoor Yield
up to 200 g/m2
Outdoor Yield
up to 300 g/plant
Plant Height
70–110 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 up to 200 g/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce up to 300 g/plant. Expected plant height is 70–110 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 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 Casper OG Seeds in the USA
Casper OG 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.
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 55-65 days 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 from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/casper-og-auto.