Critical by Advanced Seeds

Critical strain photo
Type mostly indicaFlower ±53 daysTHC 16%Cross Critical Mass × White Widow

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Bred by Advanced Seeds from Critical Mass × White Widow, Critical is an indica-leaning cannabis variety. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. Reported THC is 16%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Critical grows against.

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BreederAdvanced Seeds
Typemostly indica
Flowering time±53 days
THC16%
EnvironmentOutdoors
LineageCritical Mass × White Widow

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🧬 Explore the family: Critical Mass · White Widow

Ancestry Pedigree

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
White Widow
Unknown or Legendary
White Widow
De Sjamaan
Brazil Sativa
Original Strains
India Indica
Original Strains

Growing Critical: what to expect

As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Critical Mass or White Widow 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 FAQ

How long does Critical take to flower?

Critical typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Critical an indica or a sativa?

Critical is listed as mostly indica.

What are the parents of Critical?

Critical was bred from Critical Mass × White Widow by Advanced Seeds.

How strong is Critical?

Reported THC for Critical is 16%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.

What environment does Critical 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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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.