Auto Grande Crack by Bulk Seed Bank
Auto Grande Crack is an autoflowering cannabis strain from Bulk Seed Bank, bred by crossing Grande Crack × Ruderalis. Indoors it typically finishes flowering in around 67 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Auto Grande Crack grows against.
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Similar strains
| Breeder | Bulk Seed Bank |
|---|---|
| Type | 50% SATIVA – 30% INDICA |
| Flowering time | ±67 days |
| Environment | Outdoors |
| Lineage | Grande Crack × Ruderalis |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
🧬 Explore the family: Grande Crack · Ruderalis
Ancestry Pedigree
Bulk Seed Bank
Super Sativa Seed Club
Cultivators Choice
Original Strains
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Unknown or Legendary
Original Strains
Original Strains
Growing Auto Grande Crack: what to expect
Because Auto Grande Crack 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 Grande Crack 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 Grande Crack FAQ
How long does Auto Grande Crack take to flower?
Auto Grande Crack typically flowers in around 67 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Auto Grande Crack an indica or a sativa?
Auto Grande Crack is listed as 50% SATIVA – 30% INDICA (autoflowering).
What are the parents of Auto Grande Crack?
Auto Grande Crack was bred from Grande Crack × Ruderalis by Bulk Seed Bank.
What environment does Auto Grande Crack 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 Grande Crack? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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