Amnesia G13 by Marshall Seeds

Type mostly sativaFlower ±77 daysCross G-13 × Amnesia

Amnesia G13, from breeder Marshall Seeds, is a sativa-leaning strain descended from G-13 × Amnesia. Indoors it typically finishes flowering in around 77 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Amnesia G13 grows against.

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BreederMarshall Seeds
Typemostly sativa
Flowering time±77 days
EnvironmentOutdoors, Greenhouse
LineageG-13 × Amnesia

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🧬 Explore the family: G-13 · Amnesia

Ancestry Pedigree

G-13
Unknown or Legendary
Indica
Original Strains
Amnesia
Clone Only Strains
Super Silver Haze
Green House Seeds

Growing Amnesia G13: what to expect

As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with G-13 or Amnesia 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.

Amnesia G13 FAQ

How long does Amnesia G13 take to flower?

Amnesia G13 typically flowers in around 77 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Amnesia G13 an indica or a sativa?

Amnesia G13 is listed as mostly sativa.

What are the parents of Amnesia G13?

Amnesia G13 was bred from G-13 × Amnesia by Marshall Seeds.

What environment does Amnesia G13 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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Facts compiled from public breeder listings. Growing Amnesia G13? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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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.