Growing Coconuts in Vihiga

Soil suitability analysis based on Vihiga's nutrient profile

Quick answer

Generally not ideal — Vihiga is poorly suited to Coconuts. Vihiga's soil (pH 5.62, slightly acidic) gives Coconuts a suitability score of 4/100. Match fertilizer to Vihiga's nitrogen and phosphorus levels for the best result.

Vihiga County is a challenging environment for Coconuts (soil-match score 4/100) and will need significant amendment before planting. Local soils average pH 5.62 — slightly acidic to near-neutral and inside the 5.5–8 band Coconuts prefers, so no lime is usually required. The main gap is potassium — measured at N 1.02 g/kg, P 14.8 mg/kg, K 164 mg/kg against this crop's low/low/high demand — so the fertilizer plan below prioritises closing that deficit. Coconuts prefers sandy soils, while Vihiga is largely clay loam, so drainage and organic-matter management matter more here. At 1700 m, the county sits above Coconuts's preferred altitude ceiling of 400 m, where frost risk and cold nights reduce the crop's productivity. Coconuts's full potential is about 2,500 kg/acre (~KES 55,000/acre at KES 22/kg), but at Vihiga's 4/100 suitability a realistic target here is closer to 125 kg/acre (~KES 2,750/acre) unless the constraints above are addressed.

4Suitability score

Soil & climate match

FactorVihiga soilCoconuts needsStatus
pH5.625.58OK
Nitrogen1.02 g/kgmin 0.5 g/kgOK
Phosphorus14.8 mg/kgmin 6 mg/kgOK
Potassium164 mg/kgmin 200 mg/kgLow
Rainfall1,800 mm650–2,000 mmOK
Altitude1,700 m0–400 mHigh

Top dressing guide

Product
CAN
Timing
Biannual start of rains
Instruction
Apply in a ring 1m from the base. Coconuts are heavy potassium feeders — supplement with muriate of potash.
Bags per Acre
0.5

Recommended seed varieties

East African TallCoastal
KALRO · 1500-2000 days · 7.2–10.8 tons/acre
Traditional variety; high nut yield; excellent adaptation to Kenya coast.
Malayan DwarfCoastal
KALRO · 1200-1800 days · 8.1–11.7 tons/acre
Early bearing dwarf; good for small farms; high copra content.

Economics

Market priceKES 22/kg
Expected yield in Vihiga125 kg/acre
Estimated revenueKES 2,750/acre
Adjusted for Vihiga's 4/100 suitability. Under ideal conditions Coconuts can reach 2,500 kg/acre (~KES 55,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

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