Growing Mint in Kilifi
Soil suitability analysis based on Kilifi's nutrient profile
Generally not ideal — Kilifi is poorly suited to Mint. Kilifi's soil (pH 6.24, slightly acidic) gives Mint a suitability score of 7/100. Match fertilizer to Kilifi's nitrogen and phosphorus levels for the best result.
Kilifi County is a challenging environment for Mint (soil-match score 7/100) and will need significant amendment before planting. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 6–7.5 band Mint prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.8 g/kg, P 11 mg/kg, K 109 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy loam soils suit Mint, which favours loam. At 150 m, the county sits below Mint's preferred altitude range (500–2200 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Mint is the #66 soil match of the 106 crops we assess for Kilifi County. Mint's full potential is about 4,000 kg/acre (~KES 400,000/acre at KES 100/kg), but at Kilifi's 7/100 suitability a realistic target here is closer to 350 kg/acre (~KES 35,000/acre) unless the constraints above are addressed.
Better matched to Kilifi's soil: Sesame (Simsim), Sorghum, and Finger Millet — each scores higher on the same soil.
Soil & climate match
| Factor | Kilifi soil | Mint needs | Status |
|---|---|---|---|
| pH | 6.24 | 6–7.5 | OK |
| Nitrogen | 0.8 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 11 mg/kg | min 12 mg/kg | Low |
| Potassium | 109 mg/kg | min 150 mg/kg | Low |
| Rainfall | 700 mm | 700–1,400 mm | OK |
| Altitude | 150 m | 500–2,200 m | Low |
Planting calendar for Kilifi
Long Rains· April–JuneMain season here
Short Rains· November–January
Top dressing guide
Kilifi's nitrogen (0.8 g/kg) is 67% of the 1.2 g/kg Mint needs, so the standard 0.3 bags/acre is raised to 0.5. Split it across two applications to limit leaching.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag