Growing Stevia in Laikipia
Soil suitability analysis based on Laikipia's nutrient profile
Possible but challenging — Laikipia is only marginally suited to Stevia. Laikipia's soil (pH 4.99, strongly acidic) gives Stevia a suitability score of 47/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Stevia can be grown in Laikipia County, but the soil scores 47/100 and needs targeted management to reach full potential. At an average pH of 4.99 the soil is strongly acidic, below Stevia's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.42 g/kg), phosphorus (16.6 mg/kg) and potassium (215 mg/kg) all meet Stevia's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Stevia, which favours loam. On ShambaIQ's soil-match model, Stevia is the #73 soil match of the 106 crops we assess for Laikipia County. Stevia's full potential is about 3,000 kg/acre (~KES 600,000/acre at KES 200/kg), but at Laikipia's 47/100 suitability a realistic target here is closer to 1,763 kg/acre (~KES 352,600/acre) unless the constraints above are addressed.
Better matched to Laikipia's soil: Sweet Potato, Finger Millet, and Groundnuts — each scores higher on the same soil.
Soil & climate match
| Factor | Laikipia soil | Stevia needs | Status |
|---|---|---|---|
| pH | 4.99 | 6–7.5 | Adjust |
| Nitrogen | 1.42 g/kg | min 1.2 g/kg | OK |
| Phosphorus | 16.6 mg/kg | min 12 mg/kg | OK |
| Potassium | 215 mg/kg | min 150 mg/kg | OK |
| Rainfall | 600 mm | 700–1,500 mm | Low |
| Altitude | 1,700 m | 500–2,000 m | OK |
Planting calendar for Laikipia
Long Rains· April–JuneMain season here
Short Rains· October–December
Top dressing guide
Laikipia's nitrogen (1.42 g/kg) already meets Stevia's 1.2 g/kg requirement, so this is a maintenance rate.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag