Growing Capsicum in Nairobi
Soil suitability analysis based on Nairobi's nutrient profile
Yes — Nairobi is well suited to Capsicum. Nairobi's soil (pH 6.85, near-neutral) gives Capsicum a suitability score of 84/100. Match fertilizer to Nairobi's nitrogen and phosphorus levels for the best result.
Nairobi County is well suited to Capsicum, scoring 84/100 on ShambaIQ's soil-match model. Local soils average pH 6.85 — neutral and inside the 5.5–7 band Capsicum prefers, so no lime is usually required. The main gap is nitrogen — measured at N 1.1 g/kg, P 22.1 mg/kg, K 236 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Capsicum, which favours loam. On ShambaIQ's soil-match model, Capsicum is the #58 soil match of the 106 crops we assess for Nairobi County. At current prices (about KES 90/kg) and a typical 6,000 kg/acre yield, a well-managed Capsicum crop here can gross roughly KES 540,000 per acre.
Soil & climate match
| Factor | Nairobi soil | Capsicum needs | Status |
|---|---|---|---|
| pH | 6.85 | 5.5–7 | OK |
| Nitrogen | 1.1 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 22.1 mg/kg | min 20 mg/kg | OK |
| Potassium | 236 mg/kg | min 200 mg/kg | OK |
| Rainfall | 900 mm | 600–1,200 mm | OK |
| Altitude | 1,700 m | 0–2,000 m | OK |
Top dressing guide
Nairobi's nitrogen (1.1 g/kg) is 92% of the 1.2 g/kg Capsicum needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Seed varieties for Nairobi
2 capsicum varieties are rated for Nairobi's altitude (1,700 m) and rainfall (900 mm):
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag