Growing Mint in Marsabit

Soil suitability analysis based on Marsabit's nutrient profile

Marsabit County is a challenging environment for Mint (soil-match score 10/100) and will need significant amendment before planting. At an average pH of 8.22 the soil sits above Mint's preferred 6–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.52 g/kg, P 37.3 mg/kg, K 420 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Mint prefers loam soils, while Marsabit is largely sandy, so drainage and organic-matter management matter more here. Marsabit receives approximately 300 mm/year — well below Mint's minimum of 700 mm — so supplemental irrigation would be essential for this crop. Mint's full potential is about 4,000 kg/acre (~KES 400,000/acre at KES 100/kg), but at Marsabit's 10/100 suitability a realistic target here is closer to 500 kg/acre (~KES 50,000/acre) unless the constraints above are addressed.