A-TrainStrain — Effects, Genetics, Grow Guide & Where to Buy in Canada
A-Train is a indica cannabis strain with 21% THC and a 8-10 weeks flowering period. It is known for relaxed and sleepy effects and grows best in indoor tents and cooler Canadian outdoor zones. A-Train seeds are sold at Royal King Seeds Canada with discreet Canada-wide shipping and a high-germination guarantee.
A-Train earned its place in the modern cannabis canon for a reason — and the appeal is easy to explain. It is a indica-dominant (79% indica / 21% sativa) testing at roughly 21%% THC, with a flowering window of 8-10 weeks under a 12/12 photoperiod. Below we walk through what to expect from the high, how the plant grows in a tent or outdoor garden, the parental genetics behind the cultivar, and how to get A-Train seeds delivered anywhere in Canada.
A-Train Quick Stats
THC
21%%
Indica
79%
Sativa
21%
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
A-TrainEffects & Experience
Reported effects center on relaxed, sleepy, happy. A-Train 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 A-Train
Growing A-Train fits shorter outdoor seasons — Atlantic Canada, the Prairies, and northern BC — where 7-9 week flowering finishes ahead of October rains. A-Train 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: defoliate strategically on day 21 of flower; remove fan leaves blocking interior bud sites without stripping the plant; 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 training timing — top at the 4th node, not earlier and not later, for the best canopy distribution.
A-TrainLineage & Genetics
This cultivar comes from the Royal King Genetics breeding program — an in-house line developed for fast finishing and heavy yields under indoor conditions. Phenotype consistency is the result of multiple generations of selection rather than commercial seed-run breeding.
Where to Buy A-Train Seeds in Canada
A-Train seeds ship from Royal King Seeds to every Canadian province and territory with discreet packaging and a high-germination guarantee. Average delivery is 3-7 business days, with the fastest routes typically reaching British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Northwest Territories.
A-Train FAQ
Is A-Train indica or sativa?+
A-Train is a indica-dominant with a 79% indica / 21% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does A-Train take to flower?+
A-Train 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 Canadian growing zones.
What is the THC content of A-Train?+
A-Train tests at approximately 21%% 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 A-Train good for beginner growers?+
A-Train 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 A-Train seeds in Canada?+
Royal King Seeds ships A-Train seeds to every Canadian province and territory with discreet packaging, tracked delivery, and a high-germination guarantee. The product page is at https://royalkingseeds.ca/a-train-feminized — checkout accepts standard cards and Interac.