Mr. NiceStrain, Effects, Genetics, Grow Guide & Where to Buy
Mr. Nice is one of the most-searched cannabis strains in the United States, with a profile that holds up under scrutiny. It is a indica-leaning hybrid (68% indica / 32% sativa) testing at roughly 20% THC, with a flowering window of 8-10 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 Mr. Nice seeds in the USA" in one place.
Mr. Nice Quick Stats
THC
20%
Indica
68%
Sativa
32%
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
Mr. NiceEffects & Experience
Reported effects center on relaxed, sleepy, happy. Mr. Nice 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 Mr. Nice
Growing Mr. Nice fits cooler climates and high-altitude growers, where the compact structure resists wind and the short flower beats early frost. Mr. Nice 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: flush nutrients in the final 10-14 days for cleaner flavor; trichomes finish properly even on plain pH-adjusted water; 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 calcium and magnesium supplementation under bright LED lighting; cal-mag at 2-3 mL/gal from week 2 prevents the most common deficiency.
Mr. NiceLineage & Genetics
Mr. Nice 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 Mr. Nice Seeds in the USA
Mr. Nice 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.
Mr. Nice FAQ
Is Mr. Nice indica or sativa?+
Mr. Nice is a indica-leaning hybrid with a 68% indica / 32% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Mr. Nice take to flower?+
Mr. Nice 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 Mr. Nice?+
Mr. Nice 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 Mr. Nice good for beginner growers?+
Mr. Nice 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 Mr. Nice seeds in the USA?+
Royal King Seeds ships Mr. Nice 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/mr-nice-feminized, checkout accepts standard cards, Apple Pay, and crypto.