Flash by Kannabia

Flash strain photo
Type ruderalis/indicaFlower ±46 daysCross White Domina × Ruderalis

Flash is an indica-leaning cannabis strain from Kannabia, bred by crossing White Domina × Ruderalis. Indoors it typically finishes flowering in around 46 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Flash grows against.

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BreederKannabia
Typeruderalis/indica
Flowering time±46 days
EnvironmentOutdoors
LineageWhite Domina × Ruderalis

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🧬 Explore the family: White Domina · Ruderalis

Ancestry Pedigree

White Domina
Kannabia Seeds
Black Domina
Sensi Seeds
Afghanistan Indica
Original Strains
Ortega
Unknown or Legendary
Afghanistan Indica
Original Strains
Nothern Lights
Sensi Seeds
Northern Lights Nr1
The Seed Bank
Afghanistan Indica
Original Strains
Northern Lights Nr2
The Seed Bank
Northern Lights
Unknown or Legendary
Afghanistan Indica
Original Strains
Northern Lights Nr5
The Seed Bank
USA Mostly Indica
Original Strains
Hash Plant
Sensi Seeds
Hash Plant
The Seed Bank
Hash Plant
Unknown or Legendary
USA Indica
Original Strains
Hash Plant
Unknown or Legendary
Ruderalis
Original Strains

Growing 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 White Domina or Ruderalis 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.

Flash FAQ

How long does Flash take to flower?

Flash typically flowers in around 46 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Flash an indica or a sativa?

Flash is listed as ruderalis/indica.

What are the parents of Flash?

Flash was bred from White Domina × Ruderalis by Kannabia.

What environment does 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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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.