Niagara by Dr. Greenthumb
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Niagara is a sativa-leaning cannabis strain from Dr. Greenthumb, bred by crossing Mostly Sativa. Indoors it typically finishes flowering in around 45 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Niagara grows against.
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Similar strains
| Breeder | Dr. Greenthumb |
|---|---|
| Type | mostly sativa |
| Flowering time | ±45 days |
| Environment | Outdoors |
| Lineage | Mostly Sativa |
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🧬 Explore the family: Mostly Sativa
Ancestry Pedigree
Original Strains
Growing Niagara: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Mostly Sativa 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.
Niagara FAQ
How long does Niagara take to flower?
Niagara typically flowers in around 45 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Niagara an indica or a sativa?
Niagara is listed as mostly sativa.
What are the parents of Niagara?
Niagara was bred from Mostly Sativa by Dr. Greenthumb.
What environment does Niagara 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 Niagara? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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