Leeks (Allium ampeloprasum var. porrum) are a hardy, cool-season vegetable from the onion family, valued for their mild, sweet onion-like flavor. Unlike onions, leeks do not form bulbs; instead, they produce long, white stems with dark green leaves. They are commonly used in soups, stews, and various culinary dishes, offering a subtle yet flavorful taste. Leeks are easy to grow and can thrive in a home garden or container, making them a popular choice for both beginners and experienced gardeners.