Growing Tree Tomato (Tamarillo) in Kisumu

Soil suitability analysis based on Kisumu's nutrient profile

Kisumu County is a challenging environment for Tree Tomato (Tamarillo) (soil-match score 41/100) and will need significant amendment before planting. At an average pH of 5.54 the soil is slightly acidic to near-neutral, 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 nitrogen, phosphorus, and potassium — measured at N 0.91 g/kg, P 12.5 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 Kisumu 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 Kisumu's 41/100 suitability a realistic target here is closer to 4,100 kg/acre (~KES 328,000/acre) unless the constraints above are addressed.