Sweet Trainwreck Auto by Sweet Seeds
Growers reach for Sweet Trainwreck Auto as an autoflowering option, a cross of Trainwreck × Big Devil XL Auto out of Sweet Seeds. Indoors it typically finishes flowering in around 56 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sweet Trainwreck Auto grows against.
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Similar strains
| Breeder | Sweet Seeds |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±56 days |
| Environment | Outdoors |
| Lineage | Trainwreck × Big Devil XL Auto |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Trainwreck · Big Devil XL Auto
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The Seed Bank
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Unknown or Legendary
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
Cultivators Choice
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Sweet Seeds
Sweet Seeds
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Original Strains
Growing Sweet Trainwreck Auto: what to expect
Because Sweet Trainwreck Auto is an autoflower it runs on age, not photoperiod: keep it under 18–20 hours of light from sprout to harvest, start in its final pot, and go easy on training after week 3 — autos never pause to recover. Growers familiar with Trainwreck or Big Devil XL Auto will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Sweet Trainwreck Auto FAQ
How long does Sweet Trainwreck Auto take to flower?
Sweet Trainwreck Auto typically flowers in around 56 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sweet Trainwreck Auto an indica or a sativa?
Sweet Trainwreck Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Sweet Trainwreck Auto?
Sweet Trainwreck Auto was bred from Trainwreck × Big Devil XL Auto by Sweet Seeds.
What environment does Sweet Trainwreck Auto like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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