Giant Onion Seeds - Allium Cepa, 20 seeds

Giant Onion (Allium cepa) is grown for extra-large bulbs, which develop best when seedlings are started early indoors and transplanted into deeply prepared, fertile soil. A classic storage onion for the kitchen garden. This packet contains 20 seeds.

Seed Information

• Type: Vegetable Seeds
• Common Name: Giant Onion
• Botanical Name: Allium cepa
• Life Cycle: Biennial grown for first-year bulbs
• Sunlight: Full sun
• Watering: Water regularly; ease off watering as the tops begin to fall
• Soil Type: Fertile, well-drained soil with plenty of organic matter
• Planting Time: Sow indoors 8–10 weeks before transplanting in spring

Growing Instructions

• When to Plant: Start seeds indoors 8–10 weeks before setting transplants out in spring.
• Soil: Deeply worked, fertile, well-drained soil with added compost.
• Sunlight: Full sun.
• Watering: Keep the soil moist through bulb development; stop watering once the tops start to fall over.
• Spacing: Space transplants at least 6 inches apart to allow large bulbs to form.
• Germination: Seedlings emerge in 4–10 days in warm soil.
• Harvest: Lift bulbs when about half the tops have fallen over; cure them in a dry, airy place before storing.
• Tips: Keep weeds down, since onions compete poorly; mulch lightly once the transplants are established.