Red Critical Auto by BSF
Growers reach for Red Critical Auto as an autoflowering option, a cross of Critical Mass × Ruderalis out of BSF. Indoors it typically finishes flowering in around 78 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Red Critical Auto grows against.
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Similar strains
| Breeder | BSF |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±78 days |
| Environment | Outdoors |
| Lineage | Critical Mass × Ruderalis |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Critical Mass · Ruderalis
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Growing Red Critical Auto: what to expect
Because Red Critical 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 Critical Mass 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.
Red Critical Auto FAQ
How long does Red Critical Auto take to flower?
Red Critical Auto 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 Red Critical Auto an indica or a sativa?
Red Critical Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Red Critical Auto?
Red Critical Auto was bred from Critical Mass × Ruderalis by BSF.
What environment does Red Critical 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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