Growing Mint in Murang'a

Soil suitability analysis based on Murang'a's nutrient profile

Murang'a County is a solid choice for Mint, with a soil-match score of 62/100. At an average pH of 5.03 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. Nitrogen (1.2 g/kg), phosphorus (12.2 mg/kg) and potassium (168 mg/kg) all meet Mint's requirements, so a maintenance fertilizer programme is enough. Mint prefers loam soils, while Murang'a is largely clay, so drainage and organic-matter management matter more here. Mint's full potential is about 4,000 kg/acre (~KES 400,000/acre at KES 100/kg), but at Murang'a'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.

62Suitability score

Soil & climate match

FactorMurang'a soilMint needsStatus
pH5.0367.5Adjust
Nitrogen1.2 g/kgmin 1.2 g/kgOK
Phosphorus12.2 mg/kgmin 12 mg/kgOK
Potassium168 mg/kgmin 150 mg/kgOK
Rainfall1,200 mm700–1,400 mmOK
Altitude1,500 m500–2,200 mOK

Planting calendar

Long Rains

Month 1
Runner Planting & Basal
Month 2
Weeding & Top Dressing
Month 3
Continuous Harvest

Short Rains

Month 1
Runner Planting & Basal
Month 2
Weeding & Top Dressing
Month 3
Continuous Harvest

Top dressing guide

Product
CAN
Timing
Week 3 and after each cutting
Instruction
Top-dress after each cut for vigorous regrowth. Keep soil consistently moist.
Bags per Acre
0.3

Economics

Market priceKES 100/kg
Expected yield in Murang'a3,100 kg/acre
Estimated revenueKES 310,000/acre
Adjusted for Murang'a's 62/100 suitability. Under ideal conditions Mint can reach 4,000 kg/acre (~KES 400,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureLoam

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(4,500)
NPK 17:17:17
KES 3,275(5,600)
Urea
KES 3,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag