Grizzly Purple Auto by Blim Burn Seeds

Grizzly Purple Auto strain photo
Type ruderalis/indica · autoFlower ±76 daysCross Critical Automatic × Afghanistan Indica

Grizzly Purple Auto is an autoflowering cannabis strain from Blim Burn Seeds, bred by crossing Critical Automatic × Afghanistan Indica. Indoors it typically finishes flowering in around 76 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Grizzly Purple Auto grows against.

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BreederBlim Burn Seeds
Typeruderalis/indica
Flowering time±76 days
EnvironmentOutdoors
LineageCritical Automatic × Afghanistan Indica

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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.

🧬 Explore the family: Critical Automatic · Afghanistan Indica

Ancestry Pedigree

Critical Automatic
Blim Burn Seeds
Critical Express
Positronics
Critical Mass
Mr Nice Seedbank
Afghanistan Indica
Original Strains
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Lowryder Nr2
Joint Doctor
Santa Maria
No Mercy Supply
Santa Maria
Unknown or Legendary
Brazil Sativa
Original Strains
Santa Maria F1-X
Unknown or Legendary
Silver Pearl
Sensi Seeds
Early Pearl
Sensi Seeds
Early Pearl
The Seed Bank
USA Hybrid
Original Strains
Skunk Nr1
Sensi Seeds
Skunk Nr1
The Seed Bank
Nothern Lights
Sensi Seeds
Northern Lights Nr1
The Seed Bank
Afghanistan Indica
Original Strains
Northern Lights Nr2
The Seed Bank
Northern Lights
Unknown or Legendary
Afghanistan Indica
Original Strains
Northern Lights Nr5
The Seed Bank
USA Mostly Indica
Original Strains
Santa Maria
Unknown or Legendary
Lowryder
Joint Doctor
Williams Wonder
Super Sativa Seed Club
Indica
Original Strains
Northern Lights Nr2
The Seed Bank
Mexico Ruderalis
Original Strains
Afghanistan Indica
Original Strains

Growing Grizzly Purple Auto: what to expect

Because Grizzly Purple 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 Critical Automatic or Afghanistan Indica 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.

Grizzly Purple Auto FAQ

How long does Grizzly Purple Auto take to flower?

Grizzly Purple Auto typically flowers in around 76 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Grizzly Purple Auto an indica or a sativa?

Grizzly Purple Auto is listed as ruderalis/indica (autoflowering).

What are the parents of Grizzly Purple Auto?

Grizzly Purple Auto was bred from Critical Automatic × Afghanistan Indica by Blim Burn Seeds.

What environment does Grizzly Purple 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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Facts compiled from public breeder listings. Growing Grizzly Purple Auto? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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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.