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Why Durbanville Soil is Perfect for Cannabis — The Geology Behind CapeGorilla420
SmokyB420 is built on a single cultivar: CapeGorilla420. Its terroir is not accidental.
Durbanville sits on three formations:
- Malmesbury Group Shale (~550 million years): Clay-rich, pH 5.8-6.5, water-retentive subsoil
- Cape Granite: Sandy, well-draining, potassium-rich topsoil
- Table Mountain Sandstone (Peninsula Formation): 2,000m thick, silica-rich
This creates near-ideal cannabis soil: granite sandy loam over shale clay subsoil.
The Pakhuis Ice Sheet covered this region 440 million years ago, grinding rock into mineral fines. Then a shallow sea left marine fossils throughout the Bokkeveld Group. These Cape sediments match rocks in South America, the Falklands, and Antarctica — your terroir is connected to Gondwanaland.
Source: Trusswell, J.F. — The Geological Evolution of South Africa, Chapter 6.
What is your soil like? Anyone else growing on Malmesbury shale or Cape Granite?