Auto Scratch by Mamut Seeds

Auto Scratch strain photo
Type ruderalis/indica/sativa · autoFlower ±56 daysCross Lowryder × Northern Lights

Auto Scratch is an autoflowering cannabis strain from Mamut Seeds, bred by crossing Lowryder × Northern Lights. Indoors it typically finishes flowering in around 56 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Auto Scratch grows against.

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BreederMamut Seeds
Typeruderalis/indica/sativa
Flowering time±56 days
EnvironmentOutdoors
LineageLowryder × Northern Lights

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

🧬 Explore the family: Lowryder · Northern Lights

Ancestry Pedigree

Lowryder
Joint Doctor
Williams Wonder
Super Sativa Seed Club
Indica
Original Strains
Northern Lights Nr2
The Seed Bank
Northern Lights
Unknown or Legendary
Mexico Ruderalis
Original Strains
Northern Lights
Unknown or Legendary
Afghanistan Indica
Original Strains
White Widow
Unknown or Legendary
White Widow
De Sjamaan
Brazil Sativa
Original Strains
India Indica
Original Strains

Growing Auto Scratch: what to expect

Because Auto Scratch 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 Lowryder or Northern Lights 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 Scratch FAQ

How long does Auto Scratch take to flower?

Auto Scratch typically flowers in around 56 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Auto Scratch an indica or a sativa?

Auto Scratch is listed as ruderalis/indica/sativa (autoflowering).

What are the parents of Auto Scratch?

Auto Scratch was bred from Lowryder × Northern Lights by Mamut Seeds.

What environment does Auto Scratch 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 Auto Scratch? 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.