Growing Kale (Sukuma Wiki) in Kiambu
Soil suitability analysis based on Kiambu's nutrient profile
Yes — Kiambu is well suited to Kale (Sukuma Wiki). Kiambu's soil (pH 5.28, strongly acidic) gives Kale (Sukuma Wiki) a suitability score of 81/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Kiambu County is well suited to Kale (Sukuma Wiki), scoring 81/100 on ShambaIQ's soil-match model. Local soils average pH 5.28 — moderately acidic and inside the 5–7 band Kale (Sukuma Wiki) prefers, so no lime is usually required. The main gap is nitrogen — measured at N 1.01 g/kg, P 13.7 mg/kg, K 169 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay soils suit Kale (Sukuma Wiki), which favours clay loam. On ShambaIQ's soil-match model, Kale (Sukuma Wiki) is the #14 soil match of the 106 crops we assess for Kiambu 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.
Soil & climate match
| Factor | Kiambu soil | Kale (Sukuma Wiki) needs | Status |
|---|---|---|---|
| pH | 5.28 | 5–7 | OK |
| Nitrogen | 1.01 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 13.7 mg/kg | min 12 mg/kg | OK |
| Potassium | 169 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,100 mm | 700–1,800 mm | OK |
| Altitude | 1,700 m | 500–2,500 m | OK |
Planting calendar for Kiambu
Long Rains· March–MayMain season here
Short Rains· October–December
Dry Season· January–March
Top dressing guide
Kiambu'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 Kiambu
Varieties suited to Kiambu's 1,700 m altitude and 1,100 mm annual rainfall — 2 of 2 kale (sukuma wiki) varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag