Growing Mint in Kisii

Soil suitability analysis based on Kisii's nutrient profile

Kisii County is a solid choice for Mint, with a soil-match score of 62/100. At an average pH of 5.21 the soil is moderately acidic, below Mint's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen — measured at N 1.09 g/kg, P 13.1 mg/kg, K 151 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Mint, which favours loam. Mint's full potential is about 4,000 kg/acre (~KES 400,000/acre at KES 100/kg), but at Kisii's 62/100 suitability a realistic target here is closer to 3,100 kg/acre (~KES 310,000/acre) unless the constraints above are addressed.