High Mass by Xtreme Seeds

High Mass strain photo
Type ruderalis/indica/sativaFlower ±110 daysCross Critical Bilbo × Ruderalis

High Mass, from breeder Xtreme Seeds, is an indica-leaning strain descended from Critical Bilbo × Ruderalis. Indoors it typically finishes flowering in around 110 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real High Mass grows against.

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BreederXtreme Seeds
Typeruderalis/indica/sativa
Flowering time±110 days
EnvironmentOutdoors
LineageCritical Bilbo × Ruderalis

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🧬 Explore the family: Critical Bilbo · Ruderalis

Ancestry Pedigree

Critical Bilbo
Clone Only Strains
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
Ruderalis
Original Strains

Growing High Mass: 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 Bilbo or Ruderalis 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.

High Mass FAQ

How long does High Mass take to flower?

High Mass typically flowers in around 110 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is High Mass an indica or a sativa?

High Mass is listed as ruderalis/indica/sativa.

What are the parents of High Mass?

High Mass was bred from Critical Bilbo × Ruderalis by Xtreme Seeds.

What environment does High Mass 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.