The Walla Walla Onion is a sweet onion variety grown primarily in the Walla Walla Valley of Washington State. Known for its mild flavor and crisp texture, it is often enjoyed raw in salads or on sandwiches. The unique climate and volcanic soil of the region contribute to its distinctive sweetness. These onions are typically harvested in late spring to early summer and are available fresh for a limited time each year. Due to their high sugar content, Walla Walla Onions are not ideal for long-term storage, making them a seasonal favorite among chefs and home cooks alike.