Northern Lights#5 Auto by BC Seed Co.
A autoflowering cross of Northern Lights Nr5 × Ruderalis, Northern Lights#5 Auto — released by BC Seed Co. — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 56 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Northern Lights#5 Auto grows against.
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Similar strains
| Breeder | BC Seed Co. |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±56 days |
| Environment | Outdoors |
| Lineage | Northern Lights Nr5 × Ruderalis |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
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Growing Northern Lights#5 Auto: what to expect
Because Northern Lights#5 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 Northern Lights Nr5 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.
Northern Lights#5 Auto FAQ
How long does Northern Lights#5 Auto take to flower?
Northern Lights#5 Auto typically flowers in around 56 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Northern Lights#5 Auto an indica or a sativa?
Northern Lights#5 Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Northern Lights#5 Auto?
Northern Lights#5 Auto was bred from Northern Lights Nr5 × Ruderalis by BC Seed Co..
What environment does Northern Lights#5 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 Northern Lights#5 Auto? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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