Walla Walla Hybird Onion Plants-Sweet Hardy Variety-Garden Plants-Bundle of 50 or More Purchase a bundle of 50 plants or more. Mild flavor, sweet and crisp. This yellow onion is known for its size and sweetness. Onions are easy to grow and can be successfully grown in raised beds. ALL PLANTS TO CALIFORNIA WILL SHIP BARE ROOT IN ACCORDANCE WITH YOUR STATE REGULATIONS. *Images are for reference only and are of mature plants * In winter all plants will ship dormant (without leaves).