Auto M8 by Gea Seeds

Type ruderalis/sativa · autoFlower ±78 daysTHC 14%Cross M8 × Ruderalis

Auto M8, from breeder Gea Seeds, is an autoflowering strain descended from M8 × Ruderalis. Indoors it typically finishes flowering in around 78 days from sprout. Reported THC is 14%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Auto M8 grows against.

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BreederGea Seeds
Typeruderalis/sativa
Flowering time±78 days
THC14%
EnvironmentOutdoors
LineageM8 × Ruderalis

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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.

🧬 Explore the family: M8 · Ruderalis

Ancestry Pedigree

M8
Gea Seeds
Unknown Strain
Original Strains
Ruderalis
Original Strains

Growing Auto M8: what to expect

Because Auto M8 is an autoflower it runs on age, not photoperiod: keep it under 18–20 hours of light from sprout to harvest, start in its final pot, and go easy on training after week 3 — autos never pause to recover. Growers familiar with M8 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.

Auto M8 FAQ

How long does Auto M8 take to flower?

Auto M8 typically flowers in around 78 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Auto M8 an indica or a sativa?

Auto M8 is listed as ruderalis/sativa (autoflowering).

What are the parents of Auto M8?

Auto M8 was bred from M8 × Ruderalis by Gea Seeds.

How strong is Auto M8?

Reported THC for Auto M8 is 14%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.

What environment does Auto M8 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.