Hard Diesel by Gea Seeds
Growers reach for Hard Diesel as a sativa-leaning option, a cross of NYC Diesel out of Gea Seeds. Indoors it typically finishes flowering in around 67 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Hard Diesel grows against.
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Similar strains
| Breeder | Gea Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±67 days |
| Environment | Outdoors, Greenhouse |
| Lineage | NYC Diesel |
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Growing Hard 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 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.
Hard Diesel FAQ
How long does Hard Diesel take to flower?
Hard Diesel typically flowers in around 67 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Hard Diesel an indica or a sativa?
Hard Diesel is listed as mostly sativa.
What are the parents of Hard Diesel?
Hard Diesel was bred from NYC Diesel by Gea Seeds.
What environment does Hard 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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