Jack the Ripper F2 by Ape Genetics
Growers reach for Jack the Ripper F2 as a sativa-leaning option, a cross of Jack the Ripper out of Ape Genetics. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jack the Ripper F2 grows against.
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Similar strains
| Breeder | Ape Genetics |
|---|---|
| Type | mostly sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Jack the Ripper |
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🧬 Explore the family: Jack the Ripper
Ancestry Pedigree
SubCools The Dank
SubCools The Dank
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
The Seed Bank
The Seed Bank
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Cultivators Choice
Unknown or Legendary
BC Growers Association
Unknown or Legendary
Original Strains
Brothers Grimm
Unknown or Legendary
Sensi Seeds
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Growing Jack the Ripper F2: 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 the Ripper 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 the Ripper F2 FAQ
How long does Jack the Ripper F2 take to flower?
Jack the Ripper F2 typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jack the Ripper F2 an indica or a sativa?
Jack the Ripper F2 is listed as mostly sativa.
What are the parents of Jack the Ripper F2?
Jack the Ripper F2 was bred from Jack the Ripper by Ape Genetics.
What environment does Jack the Ripper F2 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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