Growing Broccoli in Kajiado

Soil suitability analysis based on Kajiado's nutrient profile

Quick answer

Generally not ideal — Kajiado is poorly suited to Broccoli. Kajiado's soil (pH 6.55, near-neutral) gives Broccoli a suitability score of 18/100. Match fertilizer to Kajiado's nitrogen and phosphorus levels for the best result.

Kajiado County is a challenging environment for Broccoli (soil-match score 18/100) and will need significant amendment before planting. Local soils average pH 6.55 — neutral and inside the 6–7.5 band Broccoli prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.97 g/kg, P 20.6 mg/kg, K 257 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Broccoli, which favours loam. Kajiado receives approximately 500 mm/year — well below Broccoli's minimum of 800 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Broccoli is the #96 soil match of the 106 crops we assess for Kajiado County. Broccoli's full potential is about 6,000 kg/acre (~KES 540,000/acre at KES 90/kg), but at Kajiado's 18/100 suitability a realistic target here is closer to 1,350 kg/acre (~KES 121,500/acre) unless the constraints above are addressed.

Better matched to Kajiado's soil: Sorghum, Cowpeas, and Pigeon Peas — each scores higher on the same soil.

18Suitability score

Soil & climate match

FactorKajiado soilBroccoli needsStatus
pH6.5567.5OK
Nitrogen0.97 g/kgmin 1.2 g/kgLow
Phosphorus20.6 mg/kgmin 20 mg/kgOK
Potassium257 mg/kgmin 200 mg/kgOK
Rainfall500 mm800–1,500 mmLow
Altitude1,300 m1,800–2,800 mLow

Planting calendar

Long Rains

Month 1
Nursery Preparation & Transplanting & DAP Basal
Month 2
CAN Top Dressing (week 3) & Caterpillar Control
Month 3
Head Initiation Top Dress & Harvesting

Short Rains

Month 1
Nursery & Transplanting
Month 2
Top Dressing & DBM Scouting
Month 3
Harvesting

Dry Season

Month 1
Irrigation-based Transplanting
Month 2
CAN Top Dressing & Pest Management
Month 3
Harvesting & Land Preparation

Top dressing guide

Product
CAN
Timing
Week 3 then head initiation (week 6)
Instruction
Apply 3 weeks after transplanting and again at head initiation (~week 6); broccoli needs steady N for tight heads
Bags per Acre
1.5

Recommended seed varieties

CalabreseHighland
Simlaw Seeds · 70-90 days · 2–3.5 tons/acre
Open-pollinated broccoli; central head plus side shoots; suited to cool highlands.
Green Magic F1Highland
East Africa Seeds · 60-75 days · 3–4.5 tons/acre
Hybrid; uniform dome heads; heat tolerant; export and supermarket quality.
Marathon F1Highland
Royal Seeds · 75-95 days · 2.8–4.3 tons/acre
Large dense heads; downy mildew tolerant; excellent for high-altitude production.

Economics

Market priceKES 90/kg
Expected yield in Kajiado1,350 kg/acre
Estimated revenueKES 121,500/acre
Adjusted for Kajiado's 18/100 suitability. Under ideal conditions Broccoli can reach 6,000 kg/acre (~KES 540,000/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