If you’ve walked through Wakulima Market (Marikiti) in Nairobi or Kongowea Market in Mombasa lately, you’ve seen them deep red, flattened-globe onions with a shine that makes brokers stop and negotiate seriously. More often than not, those are Red Coach F1 bulbs. Red Coach F1 is a hybrid red bulb onion variety that has quietly become one of the most cultivated F1 onions in Kenya, alongside Neptune F1, with farmers in Kajiado, Nakuru, and Nyeri counties reporting strong preference for it.
| Attribute | Red Coach F1 Specification |
|---|---|
| Type | Mid–short day F1 hybrid |
| Bulb shape | Flattened globe |
| Bulb color | Dark red to violet, medium-to-large |
| Maturity | 80–90 days after transplanting |
| Yield potential | 15–20tonnes per acre |
| Storage life | Up to 3 months when well cured |
| Disease resistance | Pink rot resistant |
| Plant vigour | Strong root system ideal for hot growing conditions |
| Seed rate | 250,000 seeds (1 kg) per acre |
Step-by-Step: Growing Red Coach F1 Onions in Kenya:
Step 1: Site Selection and Soil Preparation:
Red Coach F1 performs best in light, well-drained, fertile sandy loam soils with a pH of 6.0–6.8
Choose flat or gently sloping land with reliable water access.
- Plough and harrow thoroughly to a fine tilth
- Incorporate well-decomposed farmyard manure
- Raised beds improve drainage in heavier soils
Step 2: Nursery Establishment:
Like all onions in Kenya, Red Coach F1 is started in a nursery. One acre requires roughly 1.5kg-2kg of seeds.
- Prepare beds 1.2 m wide, mixing soil with fine compost
- Make shallow drills 1–2 cm deep, spaced 15–20 cm apart
- Sow thinly, cover lightly, and drench with a fungicide/bio-stimulant.
Step 3: Transplanting (Week 6–7):
Transplant when seedlings have 3–5 well-formed leaves about 6 weeks after sowing.
- Spacing: 7–10 cm between plants, 15–30 cm between rows (approximately 250,000 plants per acre)
- Water immediately after transplanting and maintain consistent moisture
- Trim roots and tops lightly if seedlings are leggy
Step 4: Feeding Your Crop:
Onions are heavy feeders. Red Coach F1 responds exceptionally well to a structured nutrition program:
- Basal: DAP at planting for root establishment
- Topdressing 1: CAN at 3–4 weeks to drive leaf growth
- Topdressing 2: NPK 17:17:17 during bulb initiation
- Boost skin quality: Calcium farmers in lower altitudes report visibly better skin retention with calcium applications
Step 5: Water Management:
Install drip irrigation after transplanting. It saves water, reduces fungal disease pressure, and enables fertigation.Onions need consistent moisture stress during bulb formation means small bulbs and thick necks.
Step 6: Pest and Disease Control:
- Thrips: the number one onion pest in Kenya. Scout weekly; control early with recommended insecticides
- Purple blotch: watch during prolonged rains; maintain fungicide cover
- Downy mildew: trim nursery seedlings and apply fungicide at week 6 to prevent attacks
- Pink root: Red Coach F1’s built-in resistance gives you a major edge here over susceptible varieties
Harvesting, Curing, and Storage:
How do you know your Red Coach F1 is ready? When 50–70% of the tops have fallen over and the necks begin to dry, it’s time. Gently lift the bulbs don’t pull.
Curing is where profit is made or lost:
- Field-dry for a few days, then move bulbs to a shaded, well-ventilated curing shed
- Cure for 7–14 days until the outer skin is dry and the neck is sealed
- Handle gently Red Coach F1’s skin retention is moderate, and skin peeling reduces price and shelf life
Well-cured Red Coach F1 stores for up to 3 months enough time to wait out a market glut and sell when prices recover.
Are you in need of in-depth knowledge on onion and garlic production? If yes, we are a call away. Contact us for: Onion seedlings, Garlic seedlings, Germinated garlic cloves, Farm planning services, Soil testing, training on onion and garlic growing, 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 You can also check out our social media handles for daily updates on TikTok: https://www.tiktok.com/@oniondoctorke0706252490?_r=1&_t=ZS-96UPUyx6ESL Instagram:https://www.instagram.com/oniondoctorke?igsh=MW5sZzJ6c3BnZ3Z0dw==Facebook:https://www.facebook.com/share/1HouRgLCwS/Twitter:https://x.com/OnionDoctorKe?s=20