Growing African Nightshade in Homa Bay

Soil suitability analysis based on Homa Bay's nutrient profile

Quick answer

Yes, with the right inputs — Homa Bay is moderately suited to African Nightshade. Homa Bay's soil (pH 5.27, strongly acidic) gives African Nightshade a suitability score of 70/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Homa Bay County is a solid choice for African Nightshade, with a soil-match score of 70/100. At an average pH of 5.27 the soil is moderately acidic, below African Nightshade's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen and potassium — measured at N 1.05 g/kg, P 13.8 mg/kg, K 147 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit African Nightshade, which favours loam. On ShambaIQ's soil-match model, African Nightshade is the #37 soil match of the 106 crops we assess for Homa Bay County. African Nightshade's full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Homa Bay's 70/100 suitability a realistic target here is closer to 4,375 kg/acre (~KES 218,750/acre) unless the constraints above are addressed.

70Suitability score

Soil & climate match

FactorHoma Bay soilAfrican Nightshade needsStatus
pH5.275.57.5Adjust
Nitrogen1.05 g/kgmin 1.2 g/kgLow
Phosphorus13.8 mg/kgmin 12 mg/kgOK
Potassium147 mg/kgmin 150 mg/kgLow
Rainfall1,100 mm800–1,500 mmOK
Altitude1,200 m1,000–2,200 mOK

Planting calendar

Long Rains

Month 1
Transplanting & Basal Fertilizer (DAP)
Month 2
First Harvest (leaf picking) & Top Dressing
Month 3
Continuous Leaf Harvest

Short Rains

Month 1
Transplanting & Basal Fertilizer
Month 2
Weeding & Pest Control
Month 3
Harvesting & Market

Dry Season

Month 1
Irrigation & Continuous Harvesting
Month 2
Top Dressing (CAN) every 2 weeks
Month 3
Replanting if stand is old

Top dressing guide

Product
CAN
Timing
Week 2-3 after transplanting
Instruction
Top dress 2-3 weeks after transplanting and after each picking to push tender leaf regrowth
Bags per Acre
1

Recommended seed varieties

Managu KALROMedium/Highland
KALRO · 30-45 days · 2.5–4 tons/acre
Indigenous leafy vegetable; high iron and vitamin A; multiple harvests; very popular in Western Kenya.
Giant NightshadeMedium/Highland
Simlaw Seeds · 35-50 days · 2.8–4.3 tons/acre
Large-leaved selection; soft palatable leaves; high market demand.
OlevolosiMedium
KALRO · 30-45 days · 2.3–3.8 tons/acre
Broad-leaf type; slow bolting; continuous picking; drought tolerant.

Economics

Market priceKES 50/kg
Expected yield in Homa Bay4,375 kg/acre
Estimated revenueKES 218,750/acre
Adjusted for Homa Bay's 70/100 suitability. Under ideal conditions African Nightshade can reach 5,000 kg/acre (~KES 250,000/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