Looking for a delicious and versatile onion to add to your meals? Look no further than the White Sweet Spanish Onion, also known as Allium cepa. These sweet white onions are a popular choice for hamburgers and salads, thanks to their mild flavor and crispy texture. They're also perfect for slicing and eating fresh, and can be used in cooking to add a touch of onion flavor without being overpowering. Growing White Sweet Spanish Onions is easy, as they can be grown as an annual for quick consumption or as a perennial for seed production. They prefer well-drained, light to medium soils and require moist soil to thrive. These bulbs grow to be around 0.6 meters (2 feet) tall, are evergreen, and are hardy to zone 5, making them able to withstand mild winter weather.
If you're looking to produce seed for future years, leave the bulbs in place and cover them with a heavy layer of mulch over winter. Come the second summer, they'll produce beautiful flowers that are pollinated by bees and insects, resulting in fresh seeds for years to come.