Growing Tree Tomato (Tamarillo) in Meru

Soil suitability analysis based on Meru's nutrient profile

Quick answer

Yes, with the right inputs — Meru is moderately suited to Tree Tomato (Tamarillo). Meru's soil (pH 4.88, strongly acidic) gives Tree Tomato (Tamarillo) a suitability score of 65/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Meru County is a solid choice for Tree Tomato (Tamarillo), with a soil-match score of 65/100. At an average pH of 4.88 the soil is strongly acidic, below Tree Tomato (Tamarillo)'s preferred 5.8–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.22 g/kg), phosphorus (20.3 mg/kg) and potassium (218 mg/kg) all meet Tree Tomato (Tamarillo)'s requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Tree Tomato (Tamarillo), which favours loam. On ShambaIQ's soil-match model, Tree Tomato (Tamarillo) is the #38 soil match of the 106 crops we assess for Meru County. Tree Tomato (Tamarillo)'s full potential is about 8,000 kg/acre (~KES 640,000/acre at KES 80/kg), but at Meru's 65/100 suitability a realistic target here is closer to 6,500 kg/acre (~KES 520,000/acre) unless the constraints above are addressed.

65Suitability score

Soil & climate match

FactorMeru soilTree Tomato (Tamarillo) needsStatus
pH4.885.87Adjust
Nitrogen1.22 g/kgmin 1.2 g/kgOK
Phosphorus20.3 mg/kgmin 20 mg/kgOK
Potassium218 mg/kgmin 200 mg/kgOK
Rainfall1,400 mm800–1,800 mmOK
Altitude1,500 m1,500–2,800 mOK

Planting calendar for Meru

Long Rains· MarchMayMain season here

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

Short Rains· OctoberDecember

October
Transplanting & Basal
November
Staking & Top Dressing
December
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 Meru
0.5

Meru's nitrogen (1.22 g/kg) already meets Tree Tomato (Tamarillo)'s 1.2 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 80/kg
Expected yield in Meru6,500 kg/acre
Estimated revenueKES 520,000/acre
Adjusted for Meru's 65/100 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