Growing Passion Fruit in Machakos

Soil suitability analysis based on Machakos's nutrient profile

Quick answer

Possible but challenging — Machakos is only marginally suited to Passion Fruit. Machakos's soil (pH 7.03, near-neutral) gives Passion Fruit a suitability score of 41/100. Match fertilizer to Machakos's nitrogen and phosphorus levels for the best result.

Machakos County is a challenging environment for Passion Fruit (soil-match score 41/100) and will need significant amendment before planting. Local soils average pH 7.03 — neutral and inside the 5.5–7.5 band Passion Fruit prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.82 g/kg, P 31.4 mg/kg, K 338 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Passion Fruit, which favours loam. Passion Fruit's full potential is about 8,000 kg/acre (~KES 560,000/acre at KES 70/kg), but at Machakos's 41/100 suitability a realistic target here is closer to 4,100 kg/acre (~KES 287,000/acre) unless the constraints above are addressed.

41Suitability score

Soil & climate match

FactorMachakos soilPassion Fruit needsStatus
pH7.035.57.5OK
Nitrogen0.82 g/kgmin 1.2 g/kgLow
Phosphorus31.4 mg/kgmin 12 mg/kgOK
Potassium338 mg/kgmin 200 mg/kgOK
Rainfall700 mm900–1,800 mmLow
Altitude1,100 m1,200–2,500 mLow

Top dressing guide

Product
CAN
Timing
Start of rains biannual
Instruction
Apply in a ring around the drip line. Split into 2 applications per year.
Bags per Acre
0.5

Recommended seed varieties

Purple PassionMedium/Highland
KALRO · 365-548 days · 4.5–7.2 tons/acre
Purple fruited; high juice content; good local and export market.
Yellow PassionMedium/Highland
KALRO · 270-365 days · 5.4–8.1 tons/acre
Yellow fruited; more vigorous; tolerant to fusarium wilt.

Economics

Market priceKES 70/kg
Expected yield in Machakos4,100 kg/acre
Estimated revenueKES 287,000/acre
Adjusted for Machakos's 41/100 suitability. Under ideal conditions Passion Fruit can reach 8,000 kg/acre (~KES 560,000/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