Growing Sweet Potato in Taita Taveta
Soil suitability analysis based on Taita Taveta's nutrient profile
Possible but challenging — Taita Taveta is only marginally suited to Sweet Potato. Taita Taveta's soil (pH 6.64, near-neutral) gives Sweet Potato a suitability score of 52/100. Match fertilizer to Taita Taveta's nitrogen and phosphorus levels for the best result.
Sweet Potato can be grown in Taita Taveta County, but the soil scores 52/100 and needs targeted management to reach full potential. Local soils average pH 6.64 — neutral and inside the 4.5–7 band Sweet Potato prefers, so no lime is usually required. The main gap is potassium — measured at N 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's low/medium/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly loam soils suit Sweet Potato, which favours sandy loam. On ShambaIQ's soil-match model, Sweet Potato is the #52 soil match of the 106 crops we assess for Taita Taveta County. Sweet Potato's full potential is about 5,000 kg/acre (~KES 90,000/acre at KES 18/kg), but at Taita Taveta's 52/100 suitability a realistic target here is closer to 3,250 kg/acre (~KES 58,500/acre) unless the constraints above are addressed.
Better matched to Taita Taveta's soil: Sorghum, Cowpeas, and Pigeon Peas — each scores higher on the same soil.
Soil & climate match
| Factor | Taita Taveta soil | Sweet Potato needs | Status |
|---|---|---|---|
| pH | 6.64 | 4.5–7 | OK |
| Nitrogen | 0.97 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 12.9 mg/kg | min 12 mg/kg | OK |
| Potassium | 104 mg/kg | min 200 mg/kg | Low |
| Rainfall | 500 mm | 600–1,800 mm | Low |
| Altitude | 700 m | 0–2,200 m | OK |
Planting calendar for Taita Taveta
Long Rains· April–JuneMain season here
Short Rains· November–January
Dry Season· February–April
Top dressing guide
Taita Taveta's nitrogen reads 0.97 g/kg, but the rate stays at zero: Sweet Potato is not top-dressed, for the crop-specific reason above.
Seed varieties for Taita Taveta
Varieties suited to Taita Taveta's 700 m altitude and 500 mm annual rainfall — 1 of 5 sweet potato varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag