Operation Blackbird by Sub Rosa Gardens
Operation Blackbird, from breeder Sub Rosa Gardens, is an indica-leaning strain descended from SR-71 PK × Alien Dog. 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 Operation Blackbird grows against.
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Similar strains
| Breeder | Sub Rosa Gardens |
|---|---|
| Type | mostly indica |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | SR-71 PK × Alien Dog |
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Ancestry Pedigree
Sub Rosa Gardens
Breeder: Sub Rosa Gardens
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Growing Operation Blackbird: 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 SR-71 PK or Alien Dog 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.
Operation Blackbird FAQ
How long does Operation Blackbird take to flower?
Operation Blackbird 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 Operation Blackbird an indica or a sativa?
Operation Blackbird is listed as mostly indica.
What are the parents of Operation Blackbird?
Operation Blackbird was bred from SR-71 PK × Alien Dog by Sub Rosa Gardens.
What environment does Operation Blackbird 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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