Growing Garlic in Embu

Soil suitability analysis based on Embu's nutrient profile

Quick answer

Possible but challenging — Embu is only marginally suited to Garlic. Embu's soil (pH 5.1, strongly acidic) gives Garlic a suitability score of 48/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Garlic can be grown in Embu County, but the soil scores 48/100 and needs targeted management to reach full potential. At an average pH of 5.1 the soil is moderately acidic, below Garlic's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen and potassium — measured at N 1.04 g/kg, P 12.6 mg/kg, K 194 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing those deficits. Garlic prefers sandy loam soils, while Embu is largely clay loam, so drainage and organic-matter management matter more here. Garlic's full potential is about 3,000 kg/acre (~KES 825,000/acre at KES 275/kg), but at Embu's 48/100 suitability a realistic target here is closer to 1,800 kg/acre (~KES 495,000/acre) unless the constraints above are addressed.

48Suitability score

Soil & climate match

FactorEmbu soilGarlic needsStatus
pH5.167.5Adjust
Nitrogen1.04 g/kgmin 1.2 g/kgLow
Phosphorus12.6 mg/kgmin 12 mg/kgOK
Potassium194 mg/kgmin 200 mg/kgLow
Rainfall1,300 mm500–900 mmHigh
Altitude1,400 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 in Embu1,800 kg/acre
Estimated revenueKES 495,000/acre
Adjusted for Embu's 48/100 suitability. Under ideal conditions Garlic can reach 3,000 kg/acre (~KES 825,000/acre) — attainable here only after the climate and soil constraints below are addressed.

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