Growing African Nightshade in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Nyandarua County is a solid choice for African Nightshade, with a soil-match score of 68/100. At an average pH of 5.38 the soil is moderately acidic, below African Nightshade's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.28 g/kg), phosphorus (14 mg/kg) and potassium (166 mg/kg) all meet African Nightshade's requirements, so a maintenance fertilizer programme is enough. African Nightshade prefers loam soils, while Nyandarua is largely clay, so drainage and organic-matter management matter more here. At current prices (about KES 50/kg) and a typical 3,500 kg/acre yield, a well-managed African Nightshade crop here can gross roughly KES 175,000 per acre.