Growing Courgette (Zucchini) in Kakamega

Soil suitability analysis based on Kakamega's nutrient profile

Quick answer

Yes, with the right inputs — Kakamega is moderately suited to Courgette (Zucchini). Kakamega's soil (pH 5.63, slightly acidic) gives Courgette (Zucchini) a suitability score of 56/100. Match fertilizer to Kakamega's nitrogen and phosphorus levels for the best result.

Courgette (Zucchini) can be grown in Kakamega County, but the soil scores 56/100 and needs targeted management to reach full potential. At an average pH of 5.63 the soil is slightly acidic to near-neutral, below Courgette (Zucchini)'s preferred 5.8–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen and potassium — measured at N 1.01 g/kg, P 14 mg/kg, K 147 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Courgette (Zucchini), which favours loam. On ShambaIQ's soil-match model, Courgette (Zucchini) is the #54 soil match of the 106 crops we assess for Kakamega County. Courgette (Zucchini)'s full potential is about 12,000 kg/acre (~KES 600,000/acre at KES 50/kg), but at Kakamega's 56/100 suitability a realistic target here is closer to 8,400 kg/acre (~KES 420,000/acre) unless the constraints above are addressed.

Better matched to Kakamega's soil: Soybeans, Rice (Lowland/Paddy), and Sweet Potato — each scores higher on the same soil.

56Suitability score

Soil & climate match

FactorKakamega soilCourgette (Zucchini) needsStatus
pH5.635.87Adjust
Nitrogen1.01 g/kgmin 1.2 g/kgLow
Phosphorus14 mg/kgmin 12 mg/kgOK
Potassium147 mg/kgmin 200 mg/kgLow
Rainfall1,900 mm500–1,200 mmHigh
Altitude1,500 m0–2,100 mOK

Planting calendar for Kakamega

Long Rains· MarchMayMain season here

March
Direct Sowing & Basal
April
Top Dressing & Pest Control
May
Fruiting & Harvest

Short Rains· AugustOctober

August
Direct Sowing & Basal
September
Top Dressing
October
Fruiting & Harvest

Top dressing guide

Product
CAN
Timing
Week 3 and at flowering
Instruction
Add potassium at fruiting for continuous fruit set and quality.
Bags per acre in Kakamega
0.50.4

Kakamega's nitrogen (1.01 g/kg) is 84% of the 1.2 g/kg Courgette (Zucchini) needs, so the standard 0.4 bags/acre is raised to 0.5. Split it across two applications to limit leaching.

Economics

Market priceKES 50/kg
Expected yield in Kakamega8,400 kg/acre
Estimated revenueKES 420,000/acre
Adjusted for Kakamega's 56/100 suitability. Under ideal conditions Courgette (Zucchini) can reach 12,000 kg/acre (~KES 600,000/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