Trainwreck Auto by Humboldt Seed Company
1 other breeder's version of Trainwreck Auto — compare flowering times side by side →
Trainwreck Auto lands on the autoflowering side of the spectrum, Humboldt Seed Company's take on the Trainwreck × Ruderalis line. Indoors it typically finishes flowering in around 80 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Trainwreck Auto grows against.
🌿 Start a Trainwreck Auto journal — free →
Similar strains
| Breeder | Humboldt Seed Company |
|---|---|
| Type | 30% Indica 70% Sativa |
| Flowering time | ±80 days |
| Environment | Outdoors |
| Lineage | Trainwreck × Ruderalis |
🌱 Get Trainwreck Auto seeds →
Affiliate link — supports Cultivar at no cost to you.
Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Trainwreck · Ruderalis
Ancestry Pedigree
Humboldt Seed Company
Clone Only Strains
Original Strains
Humboldt Seed Company
Sagarmatha Seeds
Sagarmatha Seeds
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Clone Only Strains
Serious Seeds
Original Strains
Original Strains
Original Strains
Original Strains
Unknown or Legendary
De Sjamaan
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
Growing Trainwreck Auto: what to expect
Because 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 Ruderalis 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.
Trainwreck Auto FAQ
How long does Trainwreck Auto take to flower?
Trainwreck Auto typically flowers in around 80 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Trainwreck Auto an indica or a sativa?
Trainwreck Auto is listed as 30% Indica 70% Sativa (autoflowering).
What are the parents of Trainwreck Auto?
Trainwreck Auto was bred from Trainwreck × Ruderalis by Humboldt Seed Company.
What environment does 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.
📷 Growing Trainwreck Auto and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Trainwreck Auto? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
Track your own grow free — the journal grades your environment against these bands →
Get the one-page grow reference card
VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.