Thunderfucking Grinch by Riot Seeds
Bred by Riot Seeds from Matanuska Thunderfuck × The Grinch, Thunderfucking Grinch is an indica-leaning cannabis variety. Indoors it typically finishes flowering in around 67 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Thunderfucking Grinch grows against.
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Similar strains
| Breeder | Riot Seeds |
|---|---|
| Type | indica/sativa |
| Flowering time | ±67 days |
| Environment | Indoors |
| Lineage | Matanuska Thunderfuck × The Grinch |
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🧬 Explore the family: Matanuska Thunderfuck · The Grinch
Ancestry Pedigree
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Growing Thunderfucking Grinch: 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 Matanuska Thunderfuck or The Grinch 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.
Thunderfucking Grinch FAQ
How long does Thunderfucking Grinch take to flower?
Thunderfucking Grinch typically flowers in around 67 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Thunderfucking Grinch an indica or a sativa?
Thunderfucking Grinch is listed as indica/sativa.
What are the parents of Thunderfucking Grinch?
Thunderfucking Grinch was bred from Matanuska Thunderfuck × The Grinch by Riot Seeds.
What environment does Thunderfucking Grinch 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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