Green Flash by La Semilla
Green Flash, from breeder La Semilla, is an indica-leaning strain descended from Unknown Strain × Cannatonic. Indoors it typically finishes flowering in around 54 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Green Flash grows against.
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Similar strains
| Breeder | La Semilla |
|---|---|
| Type | indica/sativa |
| Flowering time | ±54 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Unknown Strain × Cannatonic |
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Growing Green Flash: 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 Unknown Strain or Cannatonic 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.
Green Flash FAQ
How long does Green Flash take to flower?
Green Flash typically flowers in around 54 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Green Flash an indica or a sativa?
Green Flash is listed as indica/sativa.
What are the parents of Green Flash?
Green Flash was bred from Unknown Strain × Cannatonic by La Semilla.
What environment does Green Flash 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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