Growing Sisal in Kiambu
Soil suitability analysis based on Kiambu's nutrient profile
Possible but challenging — Kiambu is only marginally suited to Sisal. Kiambu's soil (pH 5.28, strongly acidic) gives Sisal a suitability score of 46/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Sisal can be grown in Kiambu County, but the soil scores 46/100 and needs targeted management to reach full potential. At an average pH of 5.28 the soil is moderately acidic, below Sisal's preferred 5.5–8.5 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 Sisal's requirements, so a maintenance fertilizer programme is enough. Sisal prefers sandy soils, while Kiambu is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Sisal is the #93 soil match of the 106 crops we assess for Kiambu County. Sisal's full potential is about 1,000 kg/acre (~KES 90,000/acre at KES 90/kg), but at Kiambu's 46/100 suitability a realistic target here is closer to 575 kg/acre (~KES 51,750/acre) unless the constraints above are addressed.
Better matched to Kiambu's soil: Macadamia, Avocado, and Pineapple — each scores higher on the same soil.
Soil & climate match
| Factor | Kiambu soil | Sisal needs | Status |
|---|---|---|---|
| pH | 5.28 | 5.5–8.5 | Adjust |
| Nitrogen | 1.01 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 13.7 mg/kg | min 6 mg/kg | OK |
| Potassium | 169 mg/kg | min 100 mg/kg | OK |
| Rainfall | 1,100 mm | 250–700 mm | High |
| Altitude | 1,700 m | 0–1,800 m | OK |
Top dressing guide
Kiambu's nitrogen reads 1.01 g/kg, but the rate stays at zero: Sisal is not top-dressed, for the crop-specific reason above.
Recommended seed varieties
No variety in our list is specifically rated for Kiambu's 1,700 m altitude and 1,100 mm rainfall, so all 1 are shown. Confirm with your agrovet before buying.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag