Amaranth farming guide — Kenya
Soil requirements, top counties, seed varieties, fertilizer plan & economics
To grow amaranth in Kenya, aim for soil pH 5.5–7.5 (loam soils); the best-suited counties are Nakuru, Uasin Gishu, Elgeyo Marakwet, Narok, Baringo. Apply DAP or NPK at planting and top-dress with CAN at Week 2-3 after thinning. A well-managed crop yields about 5,000 kg/acre (~KES 200,000 gross per acre).
Interested in starting or scaling amaranth farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing amaranth, certified seed varieties, seasonal fertilizer guidelines, and a detailed per-acre production budget to set you up for a successful harvest.
Soil requirements
Growing conditions for Amaranth
Amaranth does best with 500–1,500 mm of rainfall a year at 0–2,400 m above sea level. In drier areas, irrigation or water harvesting closes the gap; outside the altitude band, growth and yields drop.
Optimizing soil and fertilizers for Amaranth in Kenya
To achieve maximum yields when farming amaranth in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 5.5 to 7.5. Soils that fall outside this range can lock out essential macro and micro-nutrients, leading to stunted growth or crop failure. For acidic soils, applying dolomitic or calcitic agricultural lime is recommended at least 30 days before planting to normalize acidity.
Fertilizer application should be calibrated based on the crop’s nutrient demands. Amaranth has a high nitrogen requirement, medium phosphorus requirement, and medium potassium demand. Using certified seed varieties suited for your specific altitude and rainfall pattern, combined with a precise basal and top-dressing program (such as applying CAN at Week 2-3 after thinning), ensures high crop quality and protects your overall farm investment.
How to grow amaranth in Kenya
- 1Prepare the soilEnsure soil pH is between 5.5 and 7.5. Preferred texture: Loam. Apply agricultural lime if your pH is below 5.5, ideally 30 days before planting.
- 2Plant at the right timePlant amaranth during Long Rains (Sowing or Transplanting & CAN Basal–Continuous Leaf Harvest) or Short Rains (Sowing & Basal Fertilizer–Harvesting & Seed Saving) or Dry Season (Irrigation & Continuous Harvesting–Replanting if stand exhausted), timed to the start of the rains.
- 3Apply basal fertilizerAmaranth needs high nitrogen, medium phosphorus, and medium potassium. Apply a balanced basal fertilizer such as DAP or NPK at planting.
- 4Top-dressAt Week 2-3 after thinning, apply 1 bag(s) per acre of CAN. Top dress after thinning and again after each major leaf harvest to sustain tender regrowth
- 5Monitor and harvestScout regularly for pests and disease. Expected yield is about 5,000 kg/acre at roughly KES 40/kg.
Best counties for Amaranth
Challenging counties for Amaranth
These counties may need soil amendments for Amaranth
Certified seed varieties
Planting calendar
Long Rains
Short Rains
Dry Season
Economics
Top dressing
Top dress after thinning and again after each major leaf harvest to sustain tender regrowth
Fertilizer prices
Subsidized price / 50kg bag
Frequently asked questions about amaranth farming in Kenya
What soil pH is best for growing amaranth in Kenya?
Amaranth grows best in soil with a pH of 5.5 to 7.5. If your soil is more acidic than pH 5.5, apply agricultural lime about 30 days before planting to raise the pH and free up nutrients. The preferred soil texture is loam.
Which counties are best for amaranth farming in Kenya?
By soil suitability, the top counties for amaranth are Nakuru, Uasin Gishu, Elgeyo Marakwet, Narok, Baringo. A full ranking of all 47 counties, each with a suitability score, is shown above.
What fertilizer does amaranth need?
Amaranth has high nitrogen, medium phosphorus, and medium potassium requirements. Apply a balanced basal fertilizer such as DAP or NPK at planting, then top-dress with 1 bag(s) per acre of CAN at Week 2-3 after thinning.
When should I plant amaranth in Kenya?
Plant amaranth during Long Rains (Sowing or Transplanting & CAN Basal to Continuous Leaf Harvest) or Short Rains (Sowing & Basal Fertilizer to Harvesting & Seed Saving) or Dry Season (Irrigation & Continuous Harvesting to Replanting if stand exhausted), timed to the start of the rains in your area.
How much can I earn from amaranth per acre in Kenya?
Amaranth yields about 5,000 kg per acre. At a market price of roughly KES 40/kg, that is around KES 200,000 per acre in gross revenue, before input and labour costs.
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