Jack Diesel by Positronics
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Jack Diesel, from breeder Positronics, is a sativa-leaning strain descended from Jack Herer × NYC Diesel. Indoors it typically finishes flowering in around 68 days after the flip to 12/12. Reported THC is 22% with CBD at 0.1%. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Jack Diesel grows against.
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Similar strains
| Breeder | Positronics |
|---|---|
| Type | mostly sativa |
| Flowering time | ±68 days |
| THC | 22% |
| CBD | 0.1% |
| Environment | Outdoors |
| Lineage | Jack Herer × NYC Diesel |
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🧬 Explore the family: Jack Herer · NYC Diesel
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Growing Jack Diesel: 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 Herer or NYC Diesel 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 Diesel FAQ
How long does Jack Diesel take to flower?
Jack Diesel typically flowers in around 68 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Jack Diesel an indica or a sativa?
Jack Diesel is listed as mostly sativa.
What are the parents of Jack Diesel?
Jack Diesel was bred from Jack Herer × NYC Diesel by Positronics.
How strong is Jack Diesel?
Reported THC for Jack Diesel is 22% and CBD 0.1%. Actual potency depends heavily on environment, harvest ripeness, and cure quality.
What environment does Jack Diesel 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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