Big Blue Devil Auto by Seeds66

Big Blue Devil Auto strain photo
Type ruderalis/indica · autoFlower ±60 daysCross Blueberry × Ruderalis

Growers reach for Big Blue Devil Auto as an autoflowering option, a cross of Blueberry × Ruderalis out of Seeds66. Indoors it typically finishes flowering in around 60 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Big Blue Devil Auto grows against.

🌿 Start a Big Blue Devil Auto journal — free →

Similar strains

OG Kush AutoSeeds66 · ±70 daysCritical Purple AutoSeeds66 · ±55 daysAfghan AutoSeeds66 · ±77 daysZkittlez AutoSeeds66 · ±91 daysHindu Kush AutoSeeds66 · ±70 daysNYC Diesel AutoSeeds66 · ±65 daysAuto Black Domina ExplosionSputnik Seeds · ±60 daysAuto Bubble Gum00 Seeds · ±60 daysAuto CandyDivine Seeds · ±60 daysAuto Hindu KushDivine Seeds · ±60 daysAuto Northern LightBulk Seeds · ±60 daysAuto Purple Rich CBDMr. Hide · ±60 daysAll Seeds66 →
BreederSeeds66
Typeruderalis/indica
Flowering time±60 days
EnvironmentOutdoors, Greenhouse
LineageBlueberry × Ruderalis

🌱 Get Big Blue Devil 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: Blueberry · Ruderalis

Ancestry Pedigree

Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Ruderalis
Original Strains
Big Devil Auto
Sweet Seeds
Indica Sativa
Original Strains
Ruderalis
Original Strains

Growing Big Blue Devil Auto: what to expect

Because Big Blue Devil 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 Blueberry 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 Blue Devil Auto FAQ

How long does Big Blue Devil Auto take to flower?

Big Blue Devil Auto typically flowers in around 60 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Big Blue Devil Auto an indica or a sativa?

Big Blue Devil Auto is listed as ruderalis/indica (autoflowering).

What are the parents of Big Blue Devil Auto?

Big Blue Devil Auto was bred from Blueberry × Ruderalis by Seeds66.

What environment does Big Blue Devil 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 Blue Devil Auto and something looks off? Free AI photo diagnosis →

Facts compiled from public breeder listings. Growing Big Blue Devil Auto? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

Suggest an edit for Big Blue Devil Auto

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.

Or just open the card now — no email needed →

Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.