Growing Lemongrass in Kiambu
Soil suitability analysis based on Kiambu's nutrient profile
Yes, with the right inputs — Kiambu is moderately suited to Lemongrass. Kiambu's soil (pH 5.28, strongly acidic) gives Lemongrass a suitability score of 73/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Kiambu County is a solid choice for Lemongrass, with a soil-match score of 73/100. At an average pH of 5.28 the soil is moderately acidic, below Lemongrass's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.01 g/kg), phosphorus (13.7 mg/kg) and potassium (169 mg/kg) all meet Lemongrass's requirements, so a maintenance fertilizer programme is enough. Lemongrass prefers loam soils, while Kiambu is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Lemongrass is the #24 soil match of the 106 crops we assess for Kiambu County. At current prices (about KES 60/kg) and a typical 8,000 kg/acre yield, a well-managed Lemongrass crop here can gross roughly KES 480,000 per acre.
Soil & climate match
| Factor | Kiambu soil | Lemongrass needs | Status |
|---|---|---|---|
| pH | 5.28 | 5.5–7.5 | Adjust |
| Nitrogen | 1.01 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 13.7 mg/kg | min 12 mg/kg | OK |
| Potassium | 169 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,100 mm | 700–1,800 mm | OK |
| Altitude | 1,700 m | 0–2,000 m | OK |
Planting calendar for Kiambu
Long Rains· March–MayMain season here
Short Rains· October–December
Top dressing guide
Kiambu's nitrogen (1.01 g/kg) already meets Lemongrass's 0.8 g/kg requirement, so this is a maintenance rate.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag