Growing Tree Tomato (Tamarillo) in Kajiado

Soil suitability analysis based on Kajiado's nutrient profile

Kajiado County is a challenging environment for Tree Tomato (Tamarillo) (soil-match score 26/100) and will need significant amendment before planting. Local soils average pH 6.55 — neutral and inside the 5.8–7 band Tree Tomato (Tamarillo) prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.97 g/kg, P 20.6 mg/kg, K 257 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Tree Tomato (Tamarillo), which favours loam. Kajiado 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 Kajiado's 26/100 suitability a realistic target here is closer to 2,600 kg/acre (~KES 208,000/acre) unless the constraints above are addressed.

26Suitability score

Soil & climate match

FactorKajiado soilTree Tomato (Tamarillo) needsStatus
pH6.555.87OK
Nitrogen0.97 g/kgmin 1.2 g/kgLow
Phosphorus20.6 mg/kgmin 20 mg/kgOK
Potassium257 mg/kgmin 200 mg/kgOK
Rainfall500 mm800–1,800 mmLow
Altitude1,300 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 Kajiado2,600 kg/acre
Estimated revenueKES 208,000/acre
Adjusted for Kajiado's 26/100 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