Auto Blues by Mephisto Genetics

Auto Blues strain photo
Type ruderalis/indica/sativa · autoFlower ±70 daysCross Purple Indica × Blues

Auto Blues is an autoflowering cannabis strain from Mephisto Genetics, bred by crossing Purple Indica × Blues. Indoors it typically finishes flowering in around 70 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Auto Blues grows against.

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BreederMephisto Genetics
Typeruderalis/indica/sativa
Flowering time±70 days
EnvironmentOutdoors
LineagePurple Indica × Blues
DescendantsSour Blues, Blue Cush, Chem City Blues

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

🧬 Explore the family: Purple Indica · Blues · Sour Blues · Blue Cush · Chem City Blues

Ancestry Pedigree

Purple Indica
Unknown or Legendary
Indica
Original Strains
Blues
Clone Only Strains
Skunk Nr1
Sensi Seeds
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains

Growing Auto Blues: what to expect

Because Auto Blues 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 Purple Indica or Blues 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 Blues FAQ

How long does Auto Blues take to flower?

Auto Blues typically flowers in around 70 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Auto Blues an indica or a sativa?

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

What are the parents of Auto Blues?

Auto Blues was bred from Purple Indica × Blues by Mephisto Genetics.

What environment does Auto Blues 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 Blues? 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.