Critical Mass by Mr. Nice
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Critical Mass is an indica-leaning cannabis strain from Mr. Nice, bred by crossing Afghanistan Indica × Skunk Nr1. Indoors it typically finishes flowering in around 50 days after the flip to 12/12. Reported THC is 18.83% with CBD at 0.07%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Critical Mass grows against.
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Similar strains
| Breeder | Mr. Nice |
|---|---|
| Type | indica/sativa |
| Flowering time | ±50 days |
| THC | 18.83% |
| CBD | 0.07% |
| Environment | Outdoors, Greenhouse |
| Lineage | Afghanistan Indica × Skunk Nr1 |
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Growing Critical 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 Afghanistan Indica or Skunk Nr1 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 Mass FAQ
How long does Critical Mass take to flower?
Critical Mass typically flowers in around 50 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Critical Mass an indica or a sativa?
Critical Mass is listed as indica/sativa.
What are the parents of Critical Mass?
Critical Mass was bred from Afghanistan Indica × Skunk Nr1 by Mr. Nice.
How strong is Critical Mass?
Reported THC for Critical Mass is 18.83% and CBD 0.07%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.
What environment does Critical 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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