
Product Information
Planting Guide
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Sow
Sowing and Growing Guide
Spring Onion White Lisbon
Indoor Sowing
- Start seeds indoors 6-8 weeks before the last expected frost date.
- Fill seed trays with seed starting mix and sow seeds 1/4 inch deep, 2-3 seeds per cell.
- Keep the soil moist and at a consistent temperature of 60-65°F.
- Seedlings should emerge in 7-14 days.
- Once seedlings have developed their first true leaves, thin them to one per cell.
- Transplant seedlings outdoors when they are 4-6 inches tall and have at least 4-5 leaves.
Outdoor Sowing
- Sow seeds directly into the garden 2-4 weeks before the last expected frost date.
- Choose a sunny location with well-draining soil that has been amended with compost.
- Sow seeds 1/4 inch deep and 1-2 inches apart in rows spaced 12-18 inches apart.
- Keep the soil moist and weed-free.
- Thin seedlings when they are 2-3 inches tall, leaving 3-4 inches between plants.
Growing
- Spring Onion White Lisbon prefers well-draining soil that is rich in organic matter.
- Water consistently to keep soil evenly moist but not waterlogged.
- Fertilize once a month with a balanced fertilizer.
- Harvest when the onion bulbs are about the size of a pencil or larger, typically 8-12 weeks after sowing.
- To harvest, gently pull the onions from the soil or use a garden fork to lift them.
- Store harvested onions in a cool, dry place, such as a root cellar or refrigerator.