Walla Walla Onion seeds 20 count The mildness of the Walla Walla sweet onion is not due to sugar, but to low sulfur content, which is half that of an ordinary onion. Less sulfur means less bite & no tears. The Sweets are widely known for their large size, weighing up to 2 pounds & measuring up to 5 inches in diameter. Walla Onion Seeds 20Ct