TC91 by Treeology Genetics
Growers reach for TC91 as an indica-leaning option, a cross of Tahoe OG Kush × Chem 91 SK VA out of Treeology Genetics. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real TC91 grows against.
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Similar strains
| Breeder | Treeology Genetics |
|---|---|
| Type | mostly indica |
| Flowering time | ±70 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Tahoe OG Kush × Chem 91 SK VA |
| Descendants | Atlantis, TC91T, TC91 x My Blue #3, Black TC, Treeology Genetics - Dr. TC |
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🧬 Explore the family: Tahoe OG Kush · Chem 91 SK VA · Atlantis · TC91T · TC91 x My Blue #3 · Black TC · Treeology Genetics - Dr. TC
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Growing TC91: 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 Tahoe OG Kush or Chem 91 SK VA 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.
TC91 FAQ
How long does TC91 take to flower?
TC91 typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is TC91 an indica or a sativa?
TC91 is listed as mostly indica.
What are the parents of TC91?
TC91 was bred from Tahoe OG Kush × Chem 91 SK VA by Treeology Genetics.
What environment does TC91 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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