Growing Tree Tomato (Tamarillo) in Taita Taveta

Soil suitability analysis based on Taita Taveta's nutrient profile

Taita Taveta County is a challenging environment for Tree Tomato (Tamarillo) (soil-match score 7/100) and will need significant amendment before planting. Local soils average pH 6.64 — 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 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly loam soils suit Tree Tomato (Tamarillo), which favours loam. Taita Taveta receives approximately 500 mm/year — well below Tree Tomato (Tamarillo)'s minimum of 800 mm — so supplemental irrigation would be essential for this crop. Tree Tomato (Tamarillo)'s full potential is about 8,000 kg/acre (~KES 640,000/acre at KES 80/kg), but at Taita Taveta's 7/100 suitability a realistic target here is closer to 700 kg/acre (~KES 56,000/acre) unless the constraints above are addressed.

7Suitability score

Soil & climate match

FactorTaita Taveta soilTree Tomato (Tamarillo) needsStatus
pH6.645.87OK
Nitrogen0.97 g/kgmin 1.2 g/kgLow
Phosphorus12.9 mg/kgmin 20 mg/kgLow
Potassium104 mg/kgmin 200 mg/kgLow
Rainfall500 mm800–1,800 mmLow
Altitude700 m1,500–2,800 mLow

Planting calendar

Long Rains

Month 1
Transplanting & Basal
Month 2
Staking & Top Dressing
Month 3
Fruit Development

Short Rains

Month 1
Transplanting & Basal
Month 2
Staking & Top Dressing
Month 3
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
0.5

Economics

Market priceKES 80/kg
Expected yield in Taita Taveta700 kg/acre
Estimated revenueKES 56,000/acre
Adjusted for Taita Taveta's 7/100 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(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