Auto Critical XXL by Apex Seeds
Auto Critical XXL, from breeder Apex Seeds, is an autoflowering strain descended from Critical X × Ruderalis. Indoors it typically finishes flowering in around 69 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Auto Critical XXL grows against.
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Similar strains
| Breeder | Apex Seeds |
|---|---|
| Type | mostly indica |
| Flowering time | ±69 days |
| Environment | Outdoors |
| Lineage | Critical X × Ruderalis |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Critical X · Ruderalis
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Growing Auto Critical XXL: what to expect
Because Auto Critical XXL 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 X 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 Critical XXL FAQ
How long does Auto Critical XXL take to flower?
Auto Critical XXL typically flowers in around 69 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Auto Critical XXL an indica or a sativa?
Auto Critical XXL is listed as mostly indica (autoflowering).
What are the parents of Auto Critical XXL?
Auto Critical XXL was bred from Critical X × Ruderalis by Apex Seeds.
What environment does Auto Critical XXL 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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