Growing Spider Plant (Saga) in Vihiga

Soil suitability analysis based on Vihiga's nutrient profile

Vihiga County is a solid choice for Spider Plant (Saga), with a soil-match score of 69/100. At an average pH of 5.62 the soil is slightly acidic to near-neutral, below Spider Plant (Saga)'s preferred 5.8–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen — measured at N 1.02 g/kg, P 14.8 mg/kg, K 164 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Spider Plant (Saga), which favours loam. Spider Plant (Saga)'s full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Vihiga's 69/100 suitability a realistic target here is closer to 4,313 kg/acre (~KES 215,650/acre) unless the constraints above are addressed.

69Suitability score

Soil & climate match

FactorVihiga soilSpider Plant (Saga) needsStatus
pH5.625.87Adjust
Nitrogen1.02 g/kgmin 1.2 g/kgLow
Phosphorus14.8 mg/kgmin 12 mg/kgOK
Potassium164 mg/kgmin 150 mg/kgOK
Rainfall1,800 mm600–1,400 mmHigh
Altitude1,700 m0–2,200 mOK

Planting calendar

Long Rains

Month 1
Direct Sowing & Basal
Month 2
Thinning & Top Dressing
Month 3
Continuous Harvest

Short Rains

Month 1
Direct Sowing & Basal
Month 2
Thinning & Top Dressing
Month 3
Continuous Harvest

Top dressing guide

Product
CAN
Timing
Week 2 and after each harvest
Instruction
Fast indigenous vegetable — top-dress after cutting for vigorous regrowth.
Bags per Acre
0.3

Economics

Market priceKES 50/kg
Expected yield in Vihiga4,313 kg/acre
Estimated revenueKES 215,650/acre
Adjusted for Vihiga's 69/100 suitability. Under ideal conditions Spider Plant (Saga) 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(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