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Trainwreck Auto seed pack
AutoflowerTHC 22%Sativa 55%/Indica 45%

Trainwreck Auto

Big autoflower yield in just 8–9 weeks

$11.00 – $499.008 pack sizes — choose at Fast Buds

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Rated 4.6/5 by 14 verified Fast Buds customers

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Our take

Trainwreck Auto is a sativa-leaning (55/45) autoflowering strain from Fast Buds with THC levels reaching 22% and a sharp lemon-pine aroma undercut by spice and sweetness. It completes seed to harvest in 8–9 weeks without any light-schedule changes, making it a solid choice for first-time growers who still want a substantial, high-potency harvest.

Finishes in 8–9 weeks from seed with no light-schedule change required
Indoor yields of 1.1–1.6 oz/ft² and up to 5 oz per plant outdoors
Lemon, pine, spicy, and sweet aroma profile at up to 22% THC

Grow specs

GenotypeSativa 55%/Indica 45%
THC22%
Taste & aromaLemon, Pine, Spicy, Sweet
CBD< 1%
ClimateIndoor/Outdoor/Greenhouse/Mixlight
Total cycle (auto)8 – 9 weeks
Yield (indoor)1.1 – 1.6 oz/ft2
Yield (outdoor)2 – 5 oz/plant
Size classXL
Plant height27 – 47 inches
LineageTrainwreck Auto

Specs are Fast Buds's published figures for this product; catalog and pricing last verified August 2026. Our write-up is our own — see how we make money.

Growing notes

Trainwreck Auto suits indoor, outdoor, greenhouse, and mixed-light setups, giving you real flexibility. Plants reach 27–47 inches at harvest and are classified XL for an autoflower, so give them room. The 8–9 week total cycle means outdoor growers in shorter seasons can still pull a full run. Beginner-friendly thanks to the fixed autoflowering cycle, though managing height in tight spaces is worth planning for.

New to growing? Start with the complete guide, plan your gear with tent setups, and diagnose problems with troubleshoot.

Want variety instead?

Mix packs bundle three proven strains (30 seeds) at up to 50% off buying separately — the best value in the catalog.

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