Growing Pyrethrum in Kakamega

Soil suitability analysis based on Kakamega's nutrient profile

Pyrethrum can be grown in Kakamega County, but the soil scores 53/100 and needs targeted management to reach full potential. Local soils average pH 5.63 — slightly acidic to near-neutral and inside the 5–6.5 band Pyrethrum prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 1.01 g/kg, P 14 mg/kg, K 147 mg/kg against this crop's medium/high/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Pyrethrum, which favours loam. Pyrethrum's full potential is about 500 kg/acre (~KES 140,000/acre at KES 280/kg), but at Kakamega's 53/100 suitability a realistic target here is closer to 331 kg/acre (~KES 92,680/acre) unless the constraints above are addressed.

53Suitability score

Soil & climate match

FactorKakamega soilPyrethrum needsStatus
pH5.6356.5OK
Nitrogen1.01 g/kgmin 0.8 g/kgOK
Phosphorus14 mg/kgmin 20 mg/kgLow
Potassium147 mg/kgmin 150 mg/kgLow
Rainfall1,900 mm900–1,500 mmHigh
Altitude1,500 m1,800–3,000 mLow

Top dressing guide

Product
CAN
Timing
Week 4–6 after planting
Instruction
One application at vegetative stage to support flower production.
Bags per Acre
0.5

Recommended seed varieties

P4Highland
Pyrethrum Board of Kenya · 180-240 days · 150–250 kg/acre
High pyrethrin content; suited to highland conditions.
Clone 22Highland
Pyrethrum Board of Kenya · 180-240 days · 200–300 kg/acre
High yielding clone; good flower production.

Economics

Market priceKES 280/kg
Expected yield in Kakamega331 kg/acre
Estimated revenueKES 92,680/acre
Adjusted for Kakamega's 53/100 suitability. Under ideal conditions Pyrethrum can reach 500 kg/acre (~KES 140,000/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