Growing Garlic in Machakos

Soil suitability analysis based on Machakos's nutrient profile

Quick answer

Yes — Machakos is well suited to Garlic. Machakos's soil (pH 7.03, near-neutral) gives Garlic a suitability score of 85/100. Match fertilizer to Machakos's nitrogen and phosphorus levels for the best result.

Machakos County is well suited to Garlic, scoring 85/100 on ShambaIQ's soil-match model. Local soils average pH 7.03 — neutral and inside the 6–7.5 band Garlic prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.82 g/kg, P 31.4 mg/kg, K 338 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Garlic, which favours sandy loam. At current prices (about KES 275/kg) and a typical 3,000 kg/acre yield, a well-managed Garlic crop here can gross roughly KES 825,000 per acre.

85Suitability score

Soil & climate match

FactorMachakos soilGarlic needsStatus
pH7.0367.5OK
Nitrogen0.82 g/kgmin 1.2 g/kgLow
Phosphorus31.4 mg/kgmin 12 mg/kgOK
Potassium338 mg/kgmin 200 mg/kgOK
Rainfall700 mm500–900 mmOK
Altitude1,100 m0–2,500 mOK

Top dressing guide

Product
CAN
Timing
Week 3-4 after planting
Instruction
Apply when shoots are 15cm tall. Stop nitrogen applications once bulbing begins.
Bags per Acre
0.5

Recommended seed varieties

Early PinkMedium/Highland
Local/KALRO · 120-150 days · 1–1.5 tons/acre
Good bulb size; pungent flavor; stores well.
Purple StripeHighland
Local · 130-160 days · 0.9–1.3 tons/acre
High allicin content; excellent storage; suited to cold highlands.

Economics

Market priceKES 275/kg
Expected yield 3,000 kg/acre
Estimated revenueKES 825,000/acre

Preferred textureSandy Loam

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