White Sweet Spanish Onion Seeds - Vegetable Plant

White Sweet Spanish onion is a cool to mild season vegetable plant that develops upright green foliage and large rounded bulbs underground. It thrives in temperate climates and performs best in full sun with loose, well-drained, fertile soil rich in organic matter. The plant adapts well to garden beds, raised beds, and container cultivation where moderate moisture and consistent growing conditions support healthy bulb formation and steady growth.

Features

• Bulb-forming vegetable plant with upright foliage
• Produces large bulbs during the growing season
• Suitable for cool to mild growing conditions
• Performs best in full sun conditions
• Adapts well to garden beds and containers

Specifications

• Scientific Name: Allium cepa
• Common Name (US): Sweet Spanish Onion
• Seed Type / Variety: Vegetable seed
• Growth Habit: Upright biennial grown as annual
• USDA Zones: 3 to 10
• Planting Season: Fall or early spring
• Growing Season: Cool to mild season
• Sowing Season:
  • Mild regions: September to November
  • Cooler regions: February to April
• Germination Time and Conditions: 7 to 14 days in cool to moderate temperatures (15–24°C)
• Sunlight Requirements: Full sun
• Soil Requirements: Loose, well-drained, fertile soil
• Watering Needs: Moderate, keep soil evenly moist
• Mature Plant Size: 30 to 60 cm height, 10 to 15 cm spread
• Plant Spacing: 10 to 15 cm apart