IMPA Ruderalis by KalySeeds
Bred by KalySeeds from China Ruderalis × Rubina, IMPA Ruderalis is an indica-leaning cannabis variety. Indoors it typically finishes flowering in around 90 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real IMPA Ruderalis grows against.
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Similar strains
| Breeder | KalySeeds |
|---|---|
| Type | ruderalis/indica |
| Flowering time | ±90 days |
| Environment | Outdoors |
| Lineage | China Ruderalis × Rubina |
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🧬 Explore the family: China Ruderalis · Rubina
Ancestry Pedigree
Original Strains
KalySeeds
Original Strains
KalySeeds
Dutch Passion
Original Strains
Unknown or Legendary
Original Strains
Growing IMPA Ruderalis: 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 China Ruderalis or Rubina 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.
IMPA Ruderalis FAQ
How long does IMPA Ruderalis take to flower?
IMPA Ruderalis typically flowers in around 90 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is IMPA Ruderalis an indica or a sativa?
IMPA Ruderalis is listed as ruderalis/indica.
What are the parents of IMPA Ruderalis?
IMPA Ruderalis was bred from China Ruderalis × Rubina by KalySeeds.
What environment does IMPA Ruderalis 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 IMPA Ruderalis? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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