Growing Tree Tomato (Tamarillo) in Kajiado
Soil suitability analysis based on Kajiado's nutrient profile
Generally not ideal — Kajiado is poorly suited to Tree Tomato (Tamarillo). Kajiado's soil (pH 6.55, near-neutral) gives Tree Tomato (Tamarillo) a suitability score of 26/100. Match fertilizer to Kajiado's nitrogen and phosphorus levels for the best result.
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. On ShambaIQ's soil-match model, Tree Tomato (Tamarillo) is the #89 soil match of the 106 crops we assess for Kajiado County. 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.
Better matched to Kajiado's soil: Sorghum, Cowpeas, and Pigeon Peas — each scores higher on the same soil.
Soil & climate match
| Factor | Kajiado soil | Tree Tomato (Tamarillo) needs | Status |
|---|---|---|---|
| pH | 6.55 | 5.8–7 | OK |
| Nitrogen | 0.97 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 20.6 mg/kg | min 20 mg/kg | OK |
| Potassium | 257 mg/kg | min 200 mg/kg | OK |
| Rainfall | 500 mm | 800–1,800 mm | Low |
| Altitude | 1,300 m | 1,500–2,800 m | Low |
Planting calendar for Kajiado
Long Rains· March–May
Short Rains· October–DecemberMain season here
Top dressing guide
Kajiado's nitrogen (0.97 g/kg) is 81% 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
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag