Jack 47 XL Auto by Sweet Seeds
Jack 47 XL Auto lands on the autoflowering side of the spectrum, Sweet Seeds's take on the Jack 47 Auto line. Indoors it typically finishes flowering in around 63 days from sprout. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jack 47 XL Auto grows against.
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Similar strains
| Breeder | Sweet Seeds |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±63 days |
| Environment | Outdoors |
| Lineage | Jack 47 Auto |
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Autoflower note: runs on age, not light schedule — see the week-by-week autoflower schedule.
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Growing Jack 47 XL Auto: what to expect
Because Jack 47 XL 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 Jack 47 Auto 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.
Jack 47 XL Auto FAQ
How long does Jack 47 XL Auto take to flower?
Jack 47 XL Auto typically flowers in around 63 days from sprout (autoflower — no light-schedule flip needed). Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jack 47 XL Auto an indica or a sativa?
Jack 47 XL Auto is listed as ruderalis/indica/sativa (autoflowering).
What are the parents of Jack 47 XL Auto?
Jack 47 XL Auto was bred from Jack 47 Auto by Sweet Seeds.
What environment does Jack 47 XL 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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