The Complete Guide to Red Onions: Cultivation, Care, and Market Insights by Onion Doctor

Are you in need of in-depth knowledge on onion and garlic production? If yes, we are a call away. Our service chatter includes: Onion seedlings, Garlic seedlings, Farm planning services, Soil testing, Drip irrigation installation and maintenance, Agronomic support, Onion and Garlic value pack and Farm management. For free consultation, placing orders or booking a visit with an agronomist, please contact us via Call or what’s app +254703982228, Email: Info@oniondoctor.co.ke.

Red onions are a popular vegetable known for their vibrant color, pungent flavor, and health benefits. As a staple in many cuisines, they offer significant market opportunities for farmers. Onion Doctor supports farmers across Africa by providing quality seedlings, farm planning, soil testing, and agronomic support to ensure success in red onion farming.


Red onions come in various varieties, each with unique qualities tailored to specific climates and markets:

  • Red Bull: Known for its robust flavor and high yield.
  • Red Creole: A drought-tolerant variety ideal for warm regions.
  • Redwing: Offers excellent storage life, making it perfect for long-term markets.

Onion Doctor provides these varieties, ensuring farmers access top-quality seeds suited for their regions.


Red onions thrive in:

  • Moderate temperatures: Between 13–24°C.
  • Well-drained soil: Fertile soil with a pH of 6.0–7.5 ensures optimal growth.

Onion Doctor offers soil testing services to help farmers optimize these conditions for higher yields.


Choose well-drained land with adequate sunlight. Clear debris and loosen the soil for better root development.

Use seed trays or containers with a suitable potting mix. Ensure adequate moisture and warmth for healthy germination.

  • Spacing: 12–18 inches between rows and 4–6 inches between plants.
  • Fertilization: Apply organic matter and balanced fertilizers during planting.

By following these practices, farmers can maximize their yields. Onion Doctor provides expert guidance on seedling production and fertilization techniques.


Consistent watering is key, but avoid overwatering to prevent root rot. Mulching helps retain moisture and suppress weeds.

Protect crops from common pests like onion flies and thrips by using:

  • Organic or chemical controls.
  • Proper crop rotation and sanitation.

Onion Doctor offers e-extension services and agronomic support to help farmers address these challenges.


Harvest red onions when the foliage turns yellow and falls over. Use proper curing techniques to enhance shelf life:

  • Field Curing: Dry bulbs under the sun with leaves partially covering them.
  • Protected Curing: Cure in a ventilated, dry area for consistent results.

Store cured onions in cool, dark, well-ventilated spaces to prevent spoilage.

Onion Doctor provides post-harvest training to ensure farmers maximize profits.


Farmers often face:

  • Fungal diseases: Mitigate with fungicides and good cultural practices.
  • Nutrient deficiencies: Address through soil testing and tailored fertilization.
  • Pests: Use recommended pesticides and biological controls.

Onion Doctor assists farmers in troubleshooting these issues to ensure a successful harvest.


Red onion farming offers lucrative opportunities for farmers in Africa. By understanding the crop’s requirements and leveraging expert support from Onion Doctor, farmers can achieve higher yields, healthier crops, and better market access.

Contact Onion Doctor today for quality seedlings, farm planning, and comprehensive farming solutions that empower smallholder farmers to thrive.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top
Open chat
Scan the code
Powered by Onion Doctor.
Hello 👋
Welcome to Onion Doctor! How can we help you today?
Call Now Button