Growing Tree Tomato (Tamarillo) in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Nyandarua County is a solid choice for Tree Tomato (Tamarillo), with a soil-match score of 71/100. At an average pH of 5.38 the soil is moderately acidic, below Tree Tomato (Tamarillo)'s preferred 5.8–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is phosphorus and potassium — measured at N 1.28 g/kg, P 14 mg/kg, K 166 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Tree Tomato (Tamarillo) prefers loam soils, while Nyandarua is largely clay, so drainage and organic-matter management matter more here. Tree Tomato (Tamarillo)'s full potential is about 8,000 kg/acre (~KES 640,000/acre at KES 80/kg), but at Nyandarua's 71/100 suitability a realistic target here is closer to 7,100 kg/acre (~KES 568,000/acre) unless the constraints above are addressed.