🇿🇦 South African Cannabis Terroir Map
Select your province to discover soil types, pH ranges, organic amendments, and cultivation methods tailored to your region.
🌍 Western Cape
Mediterranean climate, winter rainfall. World-class wine terroir.
Regions: Cape Point Coastal, Stellenbosch Vineyard Valleys, Karoo Plateau, Breede River Valley, Overberg Coastal Plains
Key soils: Sandy coastal, alluvial loam, granite-derived clay-shale
pH range: 5.5–8.0
Top amendments: Kelp meal, composted grape pomace, dolomite lime, volcanic rock dust
🌍 Eastern Cape
Diverse coastal to semi-arid interior climate zones.
Regions: Coastal Plains
Key soils: Sandy loam to clay, moderate fertility
pH range: 5.8–6.8
Top amendments: Composted seaweed, fish emulsion, dolomite lime, green manure
🌍 KwaZulu-Natal
Subtropical east coast — warm, humid summers. Home of Durban Poison.
Regions: Drakensberg Highlands, Midlands Meander, Coastal Lowlands, Zululand Savannahs
Key soils: Basalt-derived mountain soils, mixed loam, sandy coastal
pH range: 5.5–7.2
Top amendments: Volcanic rock dust, composted pine bark, bat guano, coconut coir
🌍 Limpopo
Warm subtropical north — long growing season, rich river soils.
Regions: Limpopo Valley Riverine, Waterberg Plateau
Key soils: Alluvial floodplain, sandstone-derived plateau soils
pH range: 5.8–7.0
Top amendments: Composted river reed, cattle manure, rock phosphate, azomite
🌍 Mpumalanga
Escarpment and lowveld — dramatic altitude gradient.
Regions: Highveld Escarpment, Lowveld Bushveld
Key soils: Sandstone-quartzite mountain soils, bushveld sandy loam
pH range: 5.5–7.0
Top amendments: Volcanic rock dust, pine needle compost, cattle manure, diatomaceous earth
🌍 Free State
Highveld plateau — SA’s breadbasket, fertile soils.
Regions: Golden Gate Highlands, Soutpan Agricultural
Key soils: Mountain sandstone, deep fertile agricultural soils
pH range: 5.5–7.0
Top amendments: Volcanic rock dust, composted crop residue, cattle manure, mycorrhizal inoculant
🌍 Northern Cape
Arid to semi-arid — extreme temperatures, low rainfall.
Regions: Orange River Valley
Key soils: Alluvial river soils, high mineral content
pH range: 6.5–7.5
Top amendments: Composted river weed, gypsum, sulfur, kelp meal
🌍 North West
Transitional bushveld to highveld, moderate rainfall.
Regions: Bushveld Plains
Key soils: Sandy loam to clay, variable fertility
pH range: 5.8–7.0
Top amendments: Composted cattle manure, bone meal, cover crop green manure, gypsum
🌍 Gauteng
Highveld urban-agricultural interface. Indoor focus.
Regions: Highveld Urban
Key soils: Mixed urban soils, sandy to clay
pH range: 5.8–7.0
Top amendments: Composted green waste, vermicompost, perlite, organic slow-release fertilizers
💡 Pro tip: Match your amendments to your soil’s pH. Sandy soils need more organic matter. Clay soils benefit from gypsum to improve drainage. Always test your soil before amending — join the forum to discuss your specific terroir with other growers.