Growing Passion Fruit in Isiolo
Soil suitability analysis based on Isiolo's nutrient profile
Generally not ideal — Isiolo is poorly suited to Passion Fruit. Isiolo's soil (pH 7.83, alkaline) gives Passion Fruit a suitability score of 5/100. Match fertilizer to Isiolo's nitrogen and phosphorus levels for the best result.
Isiolo County is a challenging environment for Passion Fruit (soil-match score 5/100) and will need significant amendment before planting. At an average pH of 7.83 the soil sits above Passion Fruit's preferred 5.5–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.46 g/kg, P 37.4 mg/kg, K 395 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Passion Fruit prefers loam soils, while Isiolo is largely sandy, so drainage and organic-matter management matter more here. Isiolo receives approximately 350 mm/year — well below Passion Fruit's minimum of 900 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Passion Fruit is the #91 soil match of the 106 crops we assess for Isiolo County. Passion Fruit's full potential is about 8,000 kg/acre (~KES 560,000/acre at KES 70/kg), but at Isiolo's 5/100 suitability a realistic target here is closer to 500 kg/acre (~KES 35,000/acre) unless the constraints above are addressed.
Better matched to Isiolo's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Isiolo soil | Passion Fruit needs | Status |
|---|---|---|---|
| pH | 7.83 | 5.5–7.5 | Adjust |
| Nitrogen | 0.46 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 37.4 mg/kg | min 12 mg/kg | OK |
| Potassium | 395 mg/kg | min 200 mg/kg | OK |
| Rainfall | 350 mm | 900–1,800 mm | Low |
| Altitude | 900 m | 1,200–2,500 m | Low |
Planting calendar for Isiolo
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Isiolo's nitrogen (0.46 g/kg) is 38% of the 1.2 g/kg Passion Fruit needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Recommended seed varieties
No variety in our list is specifically rated for Isiolo's 900 m altitude and 350 mm rainfall, so all 2 are shown. Confirm with your agrovet before buying.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag