Growing Tree Tomato (Tamarillo) in Lamu
Soil suitability analysis based on Lamu's nutrient profile
Lamu 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 6.31 — 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 0.74 g/kg, P 9.6 mg/kg, K 117 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 Lamu is largely sandy, so drainage and organic-matter management matter more here. At 10 m, the county sits below Tree Tomato (Tamarillo)'s preferred altitude range (1500–2800 m), which limits yield potential due to heat stress. Tree Tomato (Tamarillo)'s full potential is about 8,000 kg/acre (~KES 640,000/acre at KES 80/kg), but at Lamu's 0/100 suitability a realistic target here is closer to 0 kg/acre (~KES 0/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Lamu soil | Tree Tomato (Tamarillo) needs | Status |
|---|---|---|---|
| pH | 6.31 | 5.8–7 | OK |
| Nitrogen | 0.74 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 9.6 mg/kg | min 20 mg/kg | Low |
| Potassium | 117 mg/kg | min 200 mg/kg | Low |
| Rainfall | 600 mm | 800–1,800 mm | Low |
| Altitude | 10 m | 1,500–2,800 m | Low |
Planting calendar
Long Rains
Short Rains
Top dressing guide
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag