Critical Automatic by Blim Burn Seeds

Critical Automatic strain photo
Type ruderalis/indica/sativa · autoFlower ±70 daysCross Critical Express

1 other breeder's version of Critical Automatic — compare flowering times side by side →

Growers reach for Critical Automatic as an autoflowering option, a cross of Critical Express out of Blim Burn Seeds. Indoors it typically finishes flowering in around 70 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Critical Automatic grows against.

🌿 Start a Critical Automatic journal — free →

Similar strains

Cream Automatic + KeykardBlim Burn Seeds · ±70 daysAK AutomaticBlim Burn Seeds · ±70 daysGirl Scout Cookies AutoBlim Burn Seeds · ±80 daysCream AutomaticBlim Burn Seeds · ±70 daysMamba Negra AutoBlim Burn Seeds · ±76 daysBlack Mamba Auto CBDBlim Burn Seeds · ±77 daysAuto AK 77VVictory Seeds · ±70 daysAuto Blackberry MoonrocksAnesia Seeds · ±70 daysAuto Bloody GirlAdvance Genetic · ±70 daysAuto BlueberryDutch-Headshop · ±70 daysAuto Blueberry BananaAnesia Seeds · ±70 daysAuto Blueberry BerryBulk Seed Bank · ±70 daysAll Blim Burn Seeds →
BreederBlim Burn Seeds
Typeruderalis/indica/sativa
Flowering time±70 days
EnvironmentOutdoors
LineageCritical Express
DescendantsWhite Widow Automatic, Grizzly Purple Auto

🌱 Get Critical Automatic 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: Critical Express · White Widow Automatic · Grizzly Purple Auto

Ancestry Pedigree

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
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
Silver Pearl
The Seed Bank
Early Skunk SK1 EP EP
The Seed Bank
Skunk Nr1
The Seed Bank
Early Girl
The Seed Bank
Early Girl
Cultivators Choice
USA Hybrid
Original Strains
Pollyanna
Cultivators Choice
Colombia Sativa
Original Strains
Mexico Sativa
Original Strains
Early Pearl
The Seed Bank
Northern Lights Nr5
The Seed Bank
Purest Indica
Clone Only Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Hawaii Sativa
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
Purest Indica
Clone Only Strains
Afghani
Unknown or Legendary
Mexico Ruderalis
Original Strains

Growing Critical Automatic: what to expect

Because Critical Automatic 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 Express 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.

Critical Automatic FAQ

How long does Critical Automatic take to flower?

Critical Automatic typically flowers in around 70 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Critical Automatic an indica or a sativa?

Critical Automatic is listed as ruderalis/indica/sativa (autoflowering).

What are the parents of Critical Automatic?

Critical Automatic was bred from Critical Express by Blim Burn Seeds.

What environment does Critical Automatic 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 Critical Automatic and something looks off? Free AI photo diagnosis →

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

Suggest an edit for Critical Automatic

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.