Zululand Sour by Helderberg Genetics
A sativa-leaning cross of Durban Poison × Sour Grape, Zululand Sour — released by Helderberg Genetics — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Zululand Sour grows against.
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Similar strains
| Breeder | Helderberg Genetics |
|---|---|
| Type | mostly sativa |
| Flowering time | ±70 days |
| Environment | Outdoors |
| Lineage | Durban Poison × Sour Grape |
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🧬 Explore the family: Durban Poison · Sour Grape
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Growing Zululand Sour: 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 Durban Poison or Sour Grape 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.
Zululand Sour FAQ
How long does Zululand Sour take to flower?
Zululand Sour typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Zululand Sour an indica or a sativa?
Zululand Sour is listed as mostly sativa.
What are the parents of Zululand Sour?
Zululand Sour was bred from Durban Poison × Sour Grape by Helderberg Genetics.
What environment does Zululand Sour 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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Facts compiled from public breeder listings. Growing Zululand Sour? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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