Blue Venom by G13 Labs

Blue Venom strain photo
Type mostly indicaFlower ±55 daysCross Blueberry × White Widow

Bred by G13 Labs from Blueberry × White Widow, Blue Venom is an indica-leaning cannabis variety. Indoors it typically finishes flowering in around 55 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blue Venom grows against.

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Similar strains

White WidowG13 Labs · ±58 daysMidnight KushG13 Labs · ±70 daysBlueberry GumG13 Labs · ±55 daysWhite LavenderG13 Labs · ±63 daysBlue CindyG13 Labs · ±63 daysWhite CriticalG13 Labs · ±55 daysAuto Diesel MassMr. Hide · ±55 daysChocolate EruptionLost River Seeds · ±55 daysChoke CherrySin City Seeds · ±55 daysClone Chief's SVT 40Street Medic Genetics · ±55 daysCodeine KushFatbush Seeds · ±55 daysCrazy CookiesZambeza · ±55 daysAll G13 Labs →
BreederG13 Labs
Typemostly indica
Flowering time±55 days
EnvironmentOutdoors
LineageBlueberry × White Widow

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🧬 Explore the family: Blueberry · White Widow

Ancestry Pedigree

Blueberry
Dutch Passion
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
White Widow
Green House Seeds
White Widow
De Sjamaan
Brazil Sativa
Original Strains
India Indica
Original Strains

Growing Blue Venom: 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 Blueberry 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.

Blue Venom FAQ

How long does Blue Venom take to flower?

Blue Venom typically flowers in around 55 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Blue Venom an indica or a sativa?

Blue Venom is listed as mostly indica.

What are the parents of Blue Venom?

Blue Venom was bred from Blueberry × White Widow by G13 Labs.

What environment does Blue Venom 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 Blue Venom? 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.