Sweet White Onion

100 Seeds

Sweet White Onion is a mild-flavored onion that grows best during the cool season. In the Gulf region, it should be planted from autumn through winter for the highest-quality bulbs.

🌱 Best Growing Season in the Gulf

• Sow seeds: September–November
• Best outdoor growing period: October–March
• Onions thrive in cool weather between 13–24°C.
• Avoid sowing during the hot summer months.

🌿 Seed Starting

1. Prepare loose, fertile, well-draining soil rich in organic matter.
2. Sow seeds 6–12 mm (¼–½ inch) deep.
3. Space seeds 2–3 cm apart in rows.
4. Keep the soil consistently moist but not waterlogged.

⏱ Germination

• Seeds usually germinate in 7–14 days.
• Ideal soil temperature for germination is 18–24°C.

🌱 Thinning & Transplanting

• When seedlings reach 10–15 cm tall, thin or transplant them.
• Final spacing:
  • 10–15 cm between plants
  • 25–30 cm between rows
• Handle seedlings carefully to avoid damaging the roots.

☀️ Growing Conditions

• Sunlight: Full sun (6–8 hours daily)
• Soil: Loose, fertile, well-drained soil with pH 6.0–7.0
• Watering: Water regularly to keep soil evenly moist, especially during bulb formation.
• Fertilizing: Apply a balanced vegetable fertilizer every 3–4 weeks until bulbs begin to enlarge.

🧅 Harvest

• Harvest when 50–80% of the tops naturally fall over and begin to dry.
• Pull bulbs carefully and cure them in a shaded, well-ventilated area for 7–14 days before storage.
• Sweet onions are best consumed fresh and generally do not store as long as storage onion varieties.

🌡 Gulf Climate Tips

• Plant only during the cooler months.
• Mulch around plants to conserve moisture and suppress weeds.
• Avoid excessive nitrogen late in the season, as it encourages leaf growth instead of bulb development.
• Reduce watering during the final week before harvest to improve bulb quality.