Growing Coffee (Robusta) in Bungoma

Soil suitability analysis based on Bungoma's nutrient profile

Quick answer

Possible but challenging — Bungoma is only marginally suited to Coffee (Robusta). Bungoma's soil (pH 5.56, slightly acidic) gives Coffee (Robusta) a suitability score of 50/100. Match fertilizer to Bungoma's nitrogen and phosphorus levels for the best result.

Coffee (Robusta) can be grown in Bungoma County, but the soil scores 50/100 and needs targeted management to reach full potential. Local soils average pH 5.56 — slightly acidic to near-neutral and inside the 5–6.5 band Coffee (Robusta) prefers, so no lime is usually required. The main gap is nitrogen and potassium — measured at N 1.12 g/kg, P 15.7 mg/kg, K 161 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 Coffee (Robusta), which favours loam. At 1500 m, the county sits above Coffee (Robusta)'s preferred altitude ceiling of 1200 m, where frost risk and cold nights reduce the crop's productivity. On ShambaIQ's soil-match model, Coffee (Robusta) is the #81 soil match of the 106 crops we assess for Bungoma County. Coffee (Robusta)'s full potential is about 950 kg/acre (~KES 76,000/acre at KES 80/kg), but at Bungoma's 50/100 suitability a realistic target here is closer to 594 kg/acre (~KES 47,520/acre) unless the constraints above are addressed.

Better matched to Bungoma's soil: Macadamia, Avocado, and Pineapple — each scores higher on the same soil.

50Suitability score

Soil & climate match

FactorBungoma soilCoffee (Robusta) needsStatus
pH5.5656.5OK
Nitrogen1.12 g/kgmin 1.2 g/kgLow
Phosphorus15.7 mg/kgmin 12 mg/kgOK
Potassium161 mg/kgmin 200 mg/kgLow
Rainfall1,400 mm1,500–2,500 mmLow
Altitude1,500 m0–1,200 mHigh

Planting calendar for Bungoma

Long Rains· MarchMayMain season here

March
Fertilizer Application & Weed Control
April
Fruit Development Monitoring
May
Light Pruning & Pest Management

Short Rains· AugustOctober

August
Cherry Ripening & Selective Harvesting
September
Post-Harvest Fertilizer Application
October
Pruning & Stumping if needed

Dry Season· JanuaryMarch

January
Main Pruning & Soil Conservation
February
Rest & Recovery
March
Pre-Season Fertilizer & Soil pH Check

Top dressing guide

Product
CAN
Timing
Split 3 times per year
Instruction
Apply after harvest, at flowering, and during berry expansion.
Bags per acre in Bungoma
1.251

Bungoma's nitrogen (1.12 g/kg) is 93% of the 1.2 g/kg Coffee (Robusta) needs, so the standard 1 bag/acre is raised to 1.25. Split it across two applications to limit leaching.

Seed varieties for Bungoma

Varieties suited to Bungoma's 1,500 m altitude and 1,400 mm annual rainfall — 2 of 2 coffee (robusta) varieties we list.

R7Medium/Highland
Coffee Research Institute/KALRO · 730-1000 days · 600–900 kg/acre
High yielding; suited to western Kenya conditions; disease tolerant.
R2Medium
Coffee Research Institute/KALRO · 730-1000 days · 500–750 kg/acre
Early bearing; good cup quality for local and export markets.

Economics

Market priceKES 80/kg
Expected yield in Bungoma594 kg/acre
Estimated revenueKES 47,520/acre
Adjusted for Bungoma's 50/100 suitability. Under ideal conditions Coffee (Robusta) can reach 950 kg/acre (~KES 76,000/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