Growing Kale (Sukuma Wiki) in Kakamega

Soil suitability analysis based on Kakamega's nutrient profile

Quick answer

Yes — Kakamega is well suited to Kale (Sukuma Wiki). Kakamega's soil (pH 5.63, slightly acidic) gives Kale (Sukuma Wiki) a suitability score of 85/100. Match fertilizer to Kakamega's nitrogen and phosphorus levels for the best result.

Kakamega County is well suited to Kale (Sukuma Wiki), scoring 85/100 on ShambaIQ's soil-match model. Local soils average pH 5.63 — slightly acidic to near-neutral and inside the 5–7 band Kale (Sukuma Wiki) prefers, so no lime is usually required. 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/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Kale (Sukuma Wiki), which favours clay loam. On ShambaIQ's soil-match model, Kale (Sukuma Wiki) is the #11 soil match of the 106 crops we assess for Kakamega County. At current prices (about KES 20/kg) and a typical 12,000 kg/acre yield, a well-managed Kale (Sukuma Wiki) crop here can gross roughly KES 240,000 per acre.

85Suitability score

Soil & climate match

FactorKakamega soilKale (Sukuma Wiki) needsStatus
pH5.6357OK
Nitrogen1.01 g/kgmin 1.2 g/kgLow
Phosphorus14 mg/kgmin 12 mg/kgOK
Potassium147 mg/kgmin 150 mg/kgLow
Rainfall1,900 mm700–1,800 mmHigh
Altitude1,500 m500–2,500 mOK

Planting calendar for Kakamega

Long Rains· MarchMayMain season here

March
Transplanting & Basal Fertilizer
April
First Harvest & Top Dressing
May
Continuous Harvesting & Top Dressing

Short Rains· AugustOctober

August
Transplanting & Basal Fertilizer
September
Top Dressing & Pest Control
October
Continuous Harvesting

Dry Season· JanuaryMarch

January
Irrigation & Continuous Harvesting
February
Top Dressing Every 3 Weeks
March
Replanting if stand is old

Top dressing guide

Product
CAN
Timing
Every 3 weeks after first harvest
Instruction
Kale is a heavy feeder. Regular top dressing is critical for continuous harvest.
Bags per acre in Kakamega
0.750.5

Kakamega's nitrogen (1.01 g/kg) is 84% of the 1.2 g/kg Kale (Sukuma Wiki) needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.

Seed varieties for Kakamega

Varieties suited to Kakamega's 1,500 m altitude and 1,900 mm annual rainfall — 2 of 2 kale (sukuma wiki) varieties we list.

Thousand HeadedMedium/Highland
Simlaw Seeds · 60-70 days · 5–6 tons/acre
Continuous harvesting up to 9 months.
Collard Mfalme F1Medium/Highland
Royal Seeds · 45-60 days · 7–8 tons/acre
High yielding hybrid; soft large leaves.

Economics

Market priceKES 20/kg
Expected yield 12,000 kg/acre
Estimated revenueKES 240,000/acre

Preferred textureClay Loam

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