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 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
Difficulty
intermediate
Indoor Yield
350–550 g/m²
Outdoor Yield
1000 g per plant
Plant Height
Tall (150 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 350–550 g/m² under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 1000 g per plant. Expected plant height is Tall (150 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 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 Amherst Diesel Seeds in the USA
Amherst Diesel 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.
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, 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 from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/amherst-diesel-auto.