Jack 47 F1 Fast Version by Sweet Seeds
Growers reach for Jack 47 F1 Fast Version as a sativa-leaning option, a cross of Jack 47 × Jack 47 Auto out of Sweet Seeds. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jack 47 F1 Fast Version grows against.
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Similar strains
| Breeder | Sweet Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±53 days |
| Environment | Outdoors |
| Lineage | Jack 47 × Jack 47 Auto |
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Growing Jack 47 F1 Fast Version: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Jack 47 or 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 F1 Fast Version FAQ
How long does Jack 47 F1 Fast Version take to flower?
Jack 47 F1 Fast Version typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jack 47 F1 Fast Version an indica or a sativa?
Jack 47 F1 Fast Version is listed as mostly sativa.
What are the parents of Jack 47 F1 Fast Version?
Jack 47 F1 Fast Version was bred from Jack 47 × Jack 47 Auto by Sweet Seeds.
What environment does Jack 47 F1 Fast Version 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 Jack 47 F1 Fast Version? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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