Growing Kale (Sukuma Wiki) in Nairobi
Soil suitability analysis based on Nairobi's nutrient profile
Nairobi County is well suited to Kale (Sukuma Wiki), scoring 80/100 on ShambaIQ's soil-match model. Local soils average pH 6.85 — neutral and inside the 5–7 band Kale (Sukuma Wiki) 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/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Kale (Sukuma Wiki), which favours clay loam. At current prices (about KES 20/kg) and a typical 5,000 kg/acre yield, a well-managed Kale (Sukuma Wiki) crop here can gross roughly KES 100,000 per acre.
Soil match analysis
| Nutrient | Nairobi soil | Kale (Sukuma Wiki) needs | Status |
|---|---|---|---|
| pH | 6.85 | 5–7 | OK |
| Nitrogen | 1.1 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 22.1 mg/kg | min 12 mg/kg | OK |
| Potassium | 236 mg/kg | min 150 mg/kg | OK |
Planting calendar
Long Rains
Short Rains
Dry Season
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag