Growing Celery in Kiambu
Soil suitability analysis based on Kiambu's nutrient profile
Kiambu County is a solid choice for Celery, with a soil-match score of 60/100. At an average pH of 5.28 the soil is moderately acidic, below Celery's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen, phosphorus, and potassium — measured at N 1.01 g/kg, P 13.7 mg/kg, K 169 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Celery prefers loam soils, while Kiambu is largely clay, so drainage and organic-matter management matter more here. Celery's full potential is about 12,000 kg/acre (~KES 840,000/acre at KES 70/kg), but at Kiambu's 60/100 suitability a realistic target here is closer to 9,000 kg/acre (~KES 630,000/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Kiambu soil | Celery needs | Status |
|---|---|---|---|
| pH | 5.28 | 6–7.5 | Adjust |
| Nitrogen | 1.01 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 13.7 mg/kg | min 20 mg/kg | Low |
| Potassium | 169 mg/kg | min 200 mg/kg | Low |
| Rainfall | 1,100 mm | 700–1,400 mm | OK |
| Altitude | 1,700 m | 1,000–2,600 m | OK |
Planting calendar
Long Rains
Short Rains
Top dressing guide
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag