Growing Pumpkin in Garissa

Soil suitability analysis based on Garissa's nutrient profile

Garissa County is a challenging environment for Pumpkin (soil-match score 17/100) and will need significant amendment before planting. At an average pH of 7.96 the soil sits above Pumpkin's preferred 5.8–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.61 g/kg, P 37.7 mg/kg, K 407 mg/kg against this crop's medium/medium/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Pumpkin, which favours sandy loam. Garissa receives approximately 250 mm/year — well below Pumpkin's minimum of 500 mm — so supplemental irrigation would be essential for this crop. Pumpkin's full potential is about 10,000 kg/acre (~KES 300,000/acre at KES 30/kg), but at Garissa's 17/100 suitability a realistic target here is closer to 2,125 kg/acre (~KES 63,750/acre) unless the constraints above are addressed.