Walla Walla Onion

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125 days when spring sown. When fall sown and allowed to overwinter, the round globes often attain a 5-6 inch diameter. For those of you in harsher climates, this onion can be spri ng sown. Start them early and transplant out as soon as the soil can be worked. The bulbs will be smaller, 2 ½-3 inches across, but they'll have the same sweet flavor. Plan to use quickly as they're not meant for long-term storage. Sweet type; stores 1-2 months. Long-day variety. Tips for overwintering: Sow seed at the beginning of August. Once they are large enough, around mid-October, transplant into the garden. You can harvest green onions until April. In May they will begin to bulb and will be ready to harvest as dried down bulbs by mid to late-June. Show more