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Well-known yellow long-day onion with large, sweet, and juicy bulbs. Short storage life. Perfect for slicing and adding to a sandwich or burger.
Start inside 10-12 weeks before last frost date. Seedlings can tolerate light frost and can be transplanted a few weeks before last frost date. Plant in rich soil and keep well-watered. Harvest at any stage but for storage, pick the onions when the tops fall over and cure the onions for a few weeks in a dry airy location out of direct sunlight.
| Walla Walla Onion Seeds Growing Details | |
|---|---|
| Botanical Name | Allium cepa var. ‘Walla Walla’ |
| Plant Spacing | 6-8” |
| Planting Depth | 1/2” |
| Spread | 4-6” |
| Height | 6-12” |
| Germination Temp | 50-70°F |
| Light Required | Full Sun |
| Life Cycle | Annual |
| Days to Germination | 7-15 Days |
| Days to Maturity | 110-120 Days |
| Planting Zone | 3-13 |
| Flower Form | N/A |
| Growth Rate | Slow |
| Growing Season | Spring, Summer, Fall, Winter |
| Harvest/Blooming Season | Summer, Fall |