Amherst DieselStrain, Effects, Genetics, Grow Guide & Where to Buy
Amherst Diesel 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 sativa-dominant (12% indica / 88% sativa) testing at roughly 27% 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 Amherst Diesel seeds in the USA" in one place.
Amherst Diesel Quick Stats
THC
27%
Indica
12%
Sativa
88%
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
Amherst DieselEffects & Experience
Reported effects center on creative, energetic, calm. Amherst Diesel 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 Amherst Diesel
Growing Amherst Diesel fits short outdoor seasons in the upper Midwest, Pacific Northwest, and Northeast, autoflower genetics finish in 70-90 days from seed regardless of latitude. Amherst Diesel 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: apply low-stress training in week 2 of veg, bend the main stem horizontally and tie down to expose lower nodes; 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.
Amherst DieselLineage & Genetics
Amherst Diesel is a Royal King Genetics in-house cross. The parental selection was chosen for cerebral effects and aromatic complexity, 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 Amherst Diesel Seeds in the USA
Amherst Diesel 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.
Amherst Diesel FAQ
Is Amherst Diesel indica or sativa?+
Amherst Diesel is a sativa-dominant with a 12% indica / 88% sativa split. The effects lean toward mental clarity, mood lift, and conversation.
How long does Amherst Diesel take to flower?+
Amherst Diesel 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 Amherst Diesel?+
Amherst Diesel tests at approximately 27% 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 Amherst Diesel good for beginner growers?+
Amherst Diesel 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 Amherst Diesel seeds in the USA?+
Royal King Seeds ships Amherst Diesel 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/amherst-diesel-auto, checkout accepts standard cards, Apple Pay, and crypto.