Sour Skunk Auto by Frost Brothers
A autoflowering cross of Unknown Strain × Skunk Nr1 Automatic, Sour Skunk Auto — released by Frost Brothers — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 90 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Skunk Auto grows against.
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Similar strains
| Breeder | Frost Brothers |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±90 days |
| Environment | Outdoors, Greenhouse |
| Lineage | Unknown Strain × Skunk Nr1 Automatic |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
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Growing Sour Skunk Auto: what to expect
Because Sour Skunk Auto 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 Unknown Strain or Skunk Nr1 Automatic 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.
Sour Skunk Auto FAQ
How long does Sour Skunk Auto take to flower?
Sour Skunk Auto typically flowers in around 90 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sour Skunk Auto an indica or a sativa?
Sour Skunk Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Sour Skunk Auto?
Sour Skunk Auto was bred from Unknown Strain × Skunk Nr1 Automatic by Frost Brothers.
What environment does Sour Skunk Auto 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 Sour Skunk Auto? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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