London Fog by Sonic-Seeds
Bred by Sonic-Seeds from Jack the Ripper × Pursang Haze, London Fog is an indica-leaning cannabis variety. 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 London Fog grows against.
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Similar strains
| Breeder | Sonic-Seeds |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Jack the Ripper × Pursang Haze |
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🧬 Explore the family: Jack the Ripper · Pursang Haze
Ancestry Pedigree
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Growing London Fog: what to expect
As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Jack the Ripper or Pursang Haze 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.
London Fog FAQ
How long does London Fog take to flower?
London Fog 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 London Fog an indica or a sativa?
London Fog is listed as indica/sativa.
What are the parents of London Fog?
London Fog was bred from Jack the Ripper × Pursang Haze by Sonic-Seeds.
What environment does London Fog 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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