Growing Mint in Siaya

Soil suitability analysis based on Siaya's nutrient profile

Quick answer

Yes, with the right inputs — Siaya is moderately suited to Mint. Siaya's soil (pH 5.33, strongly acidic) gives Mint a suitability score of 66/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Siaya County is a solid choice for Mint, with a soil-match score of 66/100. At an average pH of 5.33 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 potassium — measured at N 1.2 g/kg, P 12.1 mg/kg, K 134 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. On ShambaIQ's soil-match model, Mint is the #50 soil match of the 106 crops we assess for Siaya County. Mint's full potential is about 4,000 kg/acre (~KES 400,000/acre at KES 100/kg), but at Siaya's 66/100 suitability a realistic target here is closer to 3,300 kg/acre (~KES 330,000/acre) unless the constraints above are addressed.

66Suitability score

Soil & climate match

FactorSiaya soilMint needsStatus
pH5.3367.5Adjust
Nitrogen1.2 g/kgmin 1.2 g/kgOK
Phosphorus12.1 mg/kgmin 12 mg/kgOK
Potassium134 mg/kgmin 150 mg/kgLow
Rainfall1,200 mm700–1,400 mmOK
Altitude1,200 m500–2,200 mOK

Planting calendar for Siaya

Long Rains· MarchMayMain season here

March
Runner Planting & Basal
April
Weeding & Top Dressing
May
Continuous Harvest

Short Rains· SeptemberNovember

September
Runner Planting & Basal
October
Weeding & Top Dressing
November
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 in Siaya
0.250.3

Siaya's nitrogen (1.2 g/kg) already meets Mint's 1.2 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 100/kg
Expected yield in Siaya3,300 kg/acre
Estimated revenueKES 330,000/acre
Adjusted for Siaya's 66/100 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(5,700)
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