Sunflower farming guide — Kenya
Soil requirements, top counties, seed varieties, fertilizer plan & economics
To grow sunflower in Kenya, aim for soil pH 6–7.5 (sandy soils); the best-suited counties are Kajiado, Baringo, Machakos, Taita Taveta, Nairobi. Apply DAP or NPK at planting and top-dress with CAN at Week 4–5 after emergence. A well-managed crop yields about 750 kg/acre (~KES 36,000 gross per acre).
Interested in starting or scaling sunflower farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing sunflower, 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 Sunflower
Sunflower does best with 400–800 mm of rainfall a year at 0–2,000 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 Sunflower in Kenya
To achieve maximum yields when farming sunflower in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 6 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. Sunflower has a medium 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 4–5 after emergence), ensures high crop quality and protects your overall farm investment.
How to grow sunflower in Kenya
- 1Prepare the soilEnsure soil pH is between 6 and 7.5. Preferred texture: Sandy. Apply agricultural lime if your pH is below 6, ideally 30 days before planting.
- 2Plant at the right timePlant sunflower during Long Rains (Sowing & Basal Fertilizer–Head Development & Bird Protection) or Short Rains (Sowing & Basal Fertilizer–Harvesting & Drying) or Dry Season (Harvesting & Threshing–Seed Selection & Storage), timed to the start of the rains.
- 3Apply basal fertilizerSunflower needs medium nitrogen, medium phosphorus, and medium potassium. Apply a balanced basal fertilizer such as DAP or NPK at planting.
- 4Top-dressAt Week 4–5 after emergence, apply 0.5 bag(s) per acre of CAN. Apply at vegetative stage before flower bud initiation.
- 5Monitor and harvestScout regularly for pests and disease. Expected yield is about 750 kg/acre at roughly KES 48/kg.
Best counties for Sunflower
Challenging counties for Sunflower
These counties may need soil amendments for Sunflower
Certified seed varieties
Planting calendar
Long Rains
Short Rains
Dry Season
Economics
Top dressing
Apply at vegetative stage before flower bud initiation.
Fertilizer prices
Subsidized price / 50kg bag
Frequently asked questions about sunflower farming in Kenya
What soil pH is best for growing sunflower in Kenya?
Sunflower grows best in soil with a pH of 6 to 7.5. If your soil is more acidic than pH 6, apply agricultural lime about 30 days before planting to raise the pH and free up nutrients. The preferred soil texture is sandy.
Which counties are best for sunflower farming in Kenya?
By soil suitability, the top counties for sunflower are Kajiado, Baringo, Machakos, Taita Taveta, Nairobi. A full ranking of all 47 counties, each with a suitability score, is shown above.
What fertilizer does sunflower need?
Sunflower has medium nitrogen, medium phosphorus, and medium potassium requirements. Apply a balanced basal fertilizer such as DAP or NPK at planting, then top-dress with 0.5 bag(s) per acre of CAN at Week 4–5 after emergence.
When should I plant sunflower in Kenya?
Plant sunflower during Long Rains (Sowing & Basal Fertilizer to Head Development & Bird Protection) or Short Rains (Sowing & Basal Fertilizer to Harvesting & Drying) or Dry Season (Harvesting & Threshing to Seed Selection & Storage), timed to the start of the rains in your area.
How much can I earn from sunflower per acre in Kenya?
Sunflower yields about 750 kg per acre. At a market price of roughly KES 48/kg, that is around KES 36,000 per acre in gross revenue, before input and labour costs.
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