‘Walla Walla’ onions can be grown as both long-day and intermediate-day onions because they mature early. They have a high yield and large, juicy sweet bulbs. Botanical Interests’® Walla Walla Onion Seeds have been verified by The Non-GMO Project.
One packet sows up to 17 feet.
100-125 days to maturity.
Sow 4 to 6 weeks before your average last frost date, or as soon as soil can be worked; when soil temperature is at least 45°F.
What is an heirloom seed?
An heirloom variety is one that has been passed down from generation to generation. Generally, the variety must have been around for at least 50 years. They are open-pollinated, which means they have been exposed to natural pollination methods like insects or winds. They aren’t hybrids or genetically modified.