Growing Broccoli in Nairobi

Soil suitability analysis based on Nairobi's nutrient profile

Quick answer

Yes — Nairobi is well suited to Broccoli. Nairobi's soil (pH 6.85, near-neutral) gives Broccoli a suitability score of 81/100. Match fertilizer to Nairobi's nitrogen and phosphorus levels for the best result.

Nairobi County is well suited to Broccoli, scoring 81/100 on ShambaIQ's soil-match model. Local soils average pH 6.85 — neutral and inside the 6–7.5 band Broccoli prefers, so no lime is usually required. The main gap is nitrogen — measured at N 1.1 g/kg, P 22.1 mg/kg, K 236 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Broccoli, which favours loam. On ShambaIQ's soil-match model, Broccoli is the #65 soil match of the 106 crops we assess for Nairobi County. At current prices (about KES 90/kg) and a typical 6,000 kg/acre yield, a well-managed Broccoli crop here can gross roughly KES 540,000 per acre.

81Suitability score

Soil & climate match

FactorNairobi soilBroccoli needsStatus
pH6.856–7.5OK
Nitrogen1.1 g/kgmin 1.2 g/kgLow
Phosphorus22.1 mg/kgmin 20 mg/kgOK
Potassium236 mg/kgmin 200 mg/kgOK
Rainfall900 mm800–1,500 mmOK
Altitude1,700 m1,800–2,800 mLow

Planting calendar for Nairobi

Long Rains· March–MayMain season here

March
Nursery Preparation & Transplanting & DAP Basal
April
CAN Top Dressing (week 3) & Caterpillar Control
May
Head Initiation Top Dress & Harvesting

Short Rains· October–December

October
Nursery & Transplanting
November
Top Dressing & DBM Scouting
December
Harvesting

Dry Season· January–March

January
Irrigation-based Transplanting
February
CAN Top Dressing & Pest Management
March
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 in Nairobi
21.5

Nairobi's nitrogen (1.1 g/kg) is 92% of the 1.2 g/kg Broccoli needs, so the standard 1.5 bags/acre is raised to 2. Split it across two applications to limit leaching.

Seed varieties for Nairobi

3 broccoli varieties are rated for Nairobi's altitude (1,700 m) and rainfall (900 mm):

Calabrese· HighlandGreen Magic F1· HighlandMarathon F1· Highland
Full variety details — maturity, yield & breeder →

Economics

Market priceKES 90/kg
Expected yield 6,000 kg/acre
Estimated revenueKES 540,000/acre

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