Growing Grapes in Mombasa

Soil suitability analysis based on Mombasa's nutrient profile

Quick answer

Yes — Mombasa is well suited to Grapes. Mombasa's soil (pH 6.24, slightly acidic) gives Grapes a suitability score of 75/100. Match fertilizer to Mombasa's nitrogen and phosphorus levels for the best result.

Mombasa County is well suited to Grapes, scoring 75/100 on ShambaIQ's soil-match model. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 6–7.5 band Grapes prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 0.95 g/kg, P 8.4 mg/kg, K 136 mg/kg against this crop's medium/high/high demand — so the fertilizer plan below prioritises closing those deficits. Grapes prefers loam soils, while Mombasa is largely sandy, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Grapes is the #45 soil match of the 106 crops we assess for Mombasa County. At current prices (about KES 150/kg) and a typical 8,000 kg/acre yield, a well-managed Grapes crop here can gross roughly KES 1,200,000 per acre.

75Suitability score

Soil & climate match

FactorMombasa soilGrapes needsStatus
pH6.2467.5OK
Nitrogen0.95 g/kgmin 0.8 g/kgOK
Phosphorus8.4 mg/kgmin 20 mg/kgLow
Potassium136 mg/kgmin 200 mg/kgLow
Rainfall1,000 mm500–1,000 mmOK
Altitude50 m0–1,800 mOK

Planting calendar for Mombasa

Long Rains· AprilJuneMain season here

April
Pruning & Bud Break & Basal
May
Training & Top Dressing
June
Fruit Set & Harvest

Short Rains· NovemberJanuary

November
Pruning & Bud Break
December
Training & Top Dressing
January
Fruit Set & Harvest

Top dressing guide

Product
CAN
Timing
At bud break and fruit set
Instruction
Add potassium at veraison for sugar and colour. Avoid late nitrogen.
Bags per acre in Mombasa
0.5

Mombasa's nitrogen (0.95 g/kg) already meets Grapes's 0.8 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 150/kg
Expected yield in Mombasa7,500 kg/acre
Estimated revenueKES 1,125,000/acre
Adjusted for Mombasa's 75/100 suitability. Under ideal conditions Grapes can reach 8,000 kg/acre (~KES 1,200,000/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