Diamond OGStrain, Effects, Genetics, Grow Guide & Where to Buy
Diamond OG is one of the most-searched cannabis strains in the United States, with a profile that holds up under scrutiny. It is a indica-dominant (75% indica / 25% sativa) testing at roughly 15% 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 Diamond OG seeds in the USA" in one place.
Diamond OG Quick Stats
THC
15%
Indica
75%
Sativa
25%
Autoflower
Yes
Flowering
55-65 days
Difficulty
intermediate
Indoor Yield
up to 400 g/m2
Outdoor Yield
up to 350 g/plant
Plant Height
Medium
Diamond OGEffects & Experience
Reported effects center on euphoric, relaxed, sleepy. Diamond OG pulls toward a balanced state where neither head nor body dominates, a profile that holds up across phenotypes when the seeds are grown to their potential.
Growing Diamond OG
Growing Diamond OG fits short outdoor seasons in the upper Midwest, Pacific Northwest, and Northeast, autoflower genetics finish in 70-90 days from seed regardless of latitude. Diamond 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 400 g/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce up to 350 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 apply low-stress training in week 2 of veg, bend the main stem horizontally and tie down to expose lower nodes. 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.
Diamond OGLineage & Genetics
Diamond 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 Diamond OG Seeds in the USA
Diamond 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.
Diamond OG FAQ
Is Diamond OG indica or sativa?+
Diamond OG is a indica-dominant with a 75% indica / 25% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Diamond OG take to flower?+
Diamond 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 Diamond OG?+
Diamond OG tests at approximately 15% 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 Diamond OG good for beginner growers?+
Diamond 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 Diamond OG seeds in the USA?+
Royal King Seeds ships Diamond OG seeds from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/diamond-og-auto.