ON565A - Walla Walla
This is the classic large overwintering onion of the Pacific Northwest. A very large, juicy onion with a mild sweet flavour. It can be planted in the spring if given a really early start indoors, or in August to overwinter. Spring planted Walla Walla sweet onion seeds result in bulbs that are not quite as mild as the overwintered ones. And spring sown Walla Walla onions may not size up as well. We recommend that home gardeners should wait and plant for overwintering onions. This variety is hardy to -23°C (-10°F). It is most definitely a long day onion, suitable for planting between the 35th and 55th parallels. It might not have good storage ability, but man, it makes beautiful caramelized onions!
Matures in 150 days, spring sown - 300 days fall sown. (Open-pollinated seeds)
- Mild, large and juicy
- Hardy to -23°C (-10°F)
- Matures in 300 days fall sown
- Matures in 150 days, spring sown
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How To Grow
Choose sweet onion varieties for enjoying raw or cooked within a couple of months of harvest. Storage types keep much longer, and will last until the following spring in the right conditions. All onions are photoperiodic – day length triggers bulb development. Our varieties are all “long day” types, suitable for northern US and Canada. Follow along with this handy How to Grow Onions from Seeds Guide and grow food.