Blue Monster by New420Guy

Blue Monster strain photo
Type indica/sativaFlower ±60 daysCross Blue Monster

1 other breeder's version of Blue Monster — compare flowering times side by side →

A indica-leaning cross of Blue Monster, Blue Monster — released by New420Guy — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Blue Monster grows against.

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BreederNew420Guy
Typeindica/sativa
Flowering time±60 days
EnvironmentOutdoors
LineageBlue Monster

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🧬 Explore the family: Blue Monster

Ancestry Pedigree

Blue Monster
Goldenseed
G-13
Unknown or Legendary
Indica
Original Strains
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
Northern Lights Nr5
The Seed Bank
USA Mostly Indica
Original Strains
Mexico Sativa
Original Strains

Growing Blue Monster: 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 Blue Monster 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 Monster FAQ

How long does Blue Monster take to flower?

Blue Monster typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Blue Monster an indica or a sativa?

Blue Monster is listed as indica/sativa.

What are the parents of Blue Monster?

Blue Monster was bred from Blue Monster by New420Guy.

What environment does Blue Monster 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 Monster? 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.