Rainbows by BSF
A indica-leaning cross of Zkittlez, Rainbows — released by BSF — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 56 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Rainbows grows against.
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Similar strains
| Breeder | BSF |
|---|---|
| Type | mostly indica |
| Flowering time | ±56 days |
| Environment | Outdoors |
| Lineage | Zkittlez |
| Descendants | Gorilla Rainbow |
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Growing Rainbows: 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 Zkittlez 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.
Rainbows FAQ
How long does Rainbows take to flower?
Rainbows typically flowers in around 56 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Rainbows an indica or a sativa?
Rainbows is listed as mostly indica.
What are the parents of Rainbows?
Rainbows was bred from Zkittlez by BSF.
What environment does Rainbows 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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