Purple Arrow by Unknown or Legendary
Growers reach for Purple Arrow as an indica-leaning option, a cross of Purple Afghani × Hindu Kush Indica out of Unknown or Legendary. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Purple Arrow grows against.
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Similar strains
| Breeder | Unknown or Legendary |
|---|---|
| Type | mostly indica |
| Flowering time | ±53 days |
| Environment | Indoors, Outdoors |
| Lineage | Purple Afghani × Hindu Kush Indica |
| Descendants | 2nd Amendment |
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Original Strains
Growing Purple Arrow: 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 Purple Afghani or Hindu Kush Indica 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.
Purple Arrow FAQ
How long does Purple Arrow take to flower?
Purple Arrow typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Purple Arrow an indica or a sativa?
Purple Arrow is listed as mostly indica.
What are the parents of Purple Arrow?
Purple Arrow was bred from Purple Afghani × Hindu Kush Indica by Unknown or Legendary.
What environment does Purple Arrow 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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