Growing Napier Grass in Nairobi
Soil suitability analysis based on Nairobi's nutrient profile
Yes — Nairobi is well suited to Napier Grass. Nairobi's soil (pH 6.85, near-neutral) gives Napier Grass a suitability score of 91/100. Match fertilizer to Nairobi's nitrogen and phosphorus levels for the best result.
Nairobi County is well suited to Napier Grass, scoring 91/100 on ShambaIQ's soil-match model. Local soils average pH 6.85 — neutral and inside the 5–8 band Napier Grass prefers, so no lime is usually required. Nitrogen (1.1 g/kg), phosphorus (22.1 mg/kg) and potassium (236 mg/kg) all meet Napier Grass's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Napier Grass, which favours loam. At current prices (about KES 5/kg) and a typical 30,000 kg/acre yield, a well-managed Napier Grass crop here can gross roughly KES 150,000 per acre.
Soil & climate match
| Factor | Nairobi soil | Napier Grass needs | Status |
|---|---|---|---|
| pH | 6.85 | 5–8 | OK |
| Nitrogen | 1.1 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 22.1 mg/kg | min 6 mg/kg | OK |
| Potassium | 236 mg/kg | min 150 mg/kg | OK |
| Rainfall | 900 mm | 800–2,000 mm | OK |
| Altitude | 1,700 m | 0–2,500 m | OK |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag