Cancer Killer OG by MadCats
A indica-leaning cross of Cancers Nightmare × Star Killer, Cancer Killer OG — released by MadCats — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Cancer Killer OG grows against.
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Similar strains
| Breeder | MadCats |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Cancers Nightmare × Star Killer |
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Growing Cancer Killer OG: 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 Cancers Nightmare or Star Killer 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.
Cancer Killer OG FAQ
How long does Cancer Killer OG take to flower?
Cancer Killer OG typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Cancer Killer OG an indica or a sativa?
Cancer Killer OG is listed as indica/sativa.
What are the parents of Cancer Killer OG?
Cancer Killer OG was bred from Cancers Nightmare × Star Killer by MadCats.
What environment does Cancer Killer OG 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 Cancer Killer OG? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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