Growing Tree Tomato (Tamarillo) in Mombasa

Soil suitability analysis based on Mombasa's nutrient profile

Quick answer

Generally not ideal — Mombasa is poorly suited to Tree Tomato (Tamarillo). Mombasa's soil (pH 6.24, slightly acidic) gives Tree Tomato (Tamarillo) a suitability score of 0/100. Match fertilizer to Mombasa's nitrogen and phosphorus levels for the best result.

Mombasa County is a challenging environment for Tree Tomato (Tamarillo) (soil-match score 0/100) and will need significant amendment before planting. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 5.8–7 band Tree Tomato (Tamarillo) prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.95 g/kg, P 8.4 mg/kg, K 136 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Tree Tomato (Tamarillo) prefers loam soils, while Mombasa is largely sandy, so drainage and organic-matter management matter more here. At 50 m, the county sits below Tree Tomato (Tamarillo)'s preferred altitude range (1500–2800 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Tree Tomato (Tamarillo) is the #93 soil match of the 106 crops we assess for Mombasa County. Tree Tomato (Tamarillo)'s full potential is about 8,000 kg/acre (~KES 640,000/acre at KES 80/kg), but at Mombasa's 0/100 suitability a realistic target here is closer to 0 kg/acre (~KES 0/acre) unless the constraints above are addressed.

Better matched to Mombasa's soil: Finger Millet, Cashew Nuts, and Napier Grass — each scores higher on the same soil.

0Suitability score

Soil & climate match

FactorMombasa soilTree Tomato (Tamarillo) needsStatus
pH6.245.87OK
Nitrogen0.95 g/kgmin 1.2 g/kgLow
Phosphorus8.4 mg/kgmin 20 mg/kgLow
Potassium136 mg/kgmin 200 mg/kgLow
Rainfall1,000 mm800–1,800 mmOK
Altitude50 m1,500–2,800 mLow

Planting calendar for Mombasa

Long Rains· AprilJuneMain season here

April
Transplanting & Basal
May
Staking & Top Dressing
June
Fruit Development

Short Rains· NovemberJanuary

November
Transplanting & Basal
December
Staking & Top Dressing
January
Fruit Development

Top dressing guide

Product
CAN
Timing
Every 3 months
Instruction
Perennial — ring-apply around the drip line each quarter. Add NPK at flowering.
Bags per acre in Mombasa
0.750.5

Mombasa's nitrogen (0.95 g/kg) is 79% of the 1.2 g/kg Tree Tomato (Tamarillo) needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.

Economics

Market priceKES 80/kg
Expected yield in Mombasa0 kg/acre
Estimated revenueKES 0/acre
Adjusted for Mombasa's 0/100 suitability. Under ideal conditions Tree Tomato (Tamarillo) can reach 8,000 kg/acre (~KES 640,000/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