The genus Alium contains the widely cultivated food crop known commonly as onions. Onions are an easy to grow vegetable crop in the colder seasons because of their hardiness. They can also be grown in any soil type as long as it is well-draining and they receive a lot of sun. These are great vegetables for beginner gardeners as they do not require a lot of maintenance. The onion is most frequently a biennial or a perennial plant but is usually treated as an annual and harvested in its first growing season. Onion plants produce chemicals called volatiles which repel harmful insects from other plants and can be used to create a natural insecticide spray when paired with cayenne pepper/red pepper and garlic.