Growing Butternut Squash in Mandera
Soil suitability analysis based on Mandera's nutrient profile
Generally not ideal — Mandera is poorly suited to Butternut Squash. Mandera's soil (pH 8.38, alkaline) gives Butternut Squash a suitability score of 6/100. Match fertilizer to Mandera's nitrogen and phosphorus levels for the best result.
Mandera County is a challenging environment for Butternut Squash (soil-match score 6/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Butternut Squash's preferred 5.5–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.53 g/kg, P 38.3 mg/kg, K 420 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 Butternut Squash, which favours sandy loam. Mandera receives approximately 180 mm/year — well below Butternut Squash's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Butternut Squash is the #28 soil match of the 106 crops we assess for Mandera County. Butternut Squash's full potential is about 10,000 kg/acre (~KES 400,000/acre at KES 40/kg), but at Mandera's 6/100 suitability a realistic target here is closer to 750 kg/acre (~KES 30,000/acre) unless the constraints above are addressed.
Better matched to Mandera's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Mandera soil | Butternut Squash needs | Status |
|---|---|---|---|
| pH | 8.38 | 5.5–7.5 | Adjust |
| Nitrogen | 0.53 g/kg | min 0.8 g/kg | Low |
| Phosphorus | 38.3 mg/kg | min 12 mg/kg | OK |
| Potassium | 420 mg/kg | min 200 mg/kg | OK |
| Rainfall | 180 mm | 500–1,200 mm | Low |
| Altitude | 250 m | 0–2,000 m | OK |
Planting calendar
Long Rains
Short Rains
Dry Season
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag