Hell Stone by Dr. Underground
Hell Stone is a sativa-leaning cannabis strain from Dr. Underground, bred by crossing Jack Herer × Querkle. 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 Hell Stone grows against.
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Similar strains
| Breeder | Dr. Underground |
|---|---|
| Type | mostly sativa |
| Flowering time | ±67 days |
| Environment | Outdoors |
| Lineage | Jack Herer × Querkle |
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Growing Hell Stone: 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 Querkle 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.
Hell Stone FAQ
How long does Hell Stone take to flower?
Hell Stone 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 Hell Stone an indica or a sativa?
Hell Stone is listed as mostly sativa.
What are the parents of Hell Stone?
Hell Stone was bred from Jack Herer × Querkle by Dr. Underground.
What environment does Hell Stone 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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