Big Bomb Auto by Bomb Seeds
A autoflowering cross of Big Bomb × Ruderalis, Big Bomb Auto — released by Bomb Seeds — shows up in a lot of tents for good reason. 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 Big Bomb Auto grows against.
🌿 Start a Big Bomb Auto journal — free →
Similar strains
| Breeder | Bomb Seeds |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±80 days |
| Environment | Outdoors |
| Lineage | Big Bomb × Ruderalis |
🌱 Get Big Bomb 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: Big Bomb · Ruderalis
Ancestry Pedigree
Bomb Seeds
Sensi Seeds
The Seed Bank
Original Strains
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Growing Big Bomb Auto: what to expect
Because Big Bomb 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 Big Bomb 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.
Big Bomb Auto FAQ
How long does Big Bomb Auto take to flower?
Big Bomb 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 Big Bomb Auto an indica or a sativa?
Big Bomb Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Big Bomb Auto?
Big Bomb Auto was bred from Big Bomb × Ruderalis by Bomb Seeds.
What environment does Big Bomb 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 Big Bomb Auto and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Big Bomb 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.