Onions are native to Asia and the Middle East. Onions are the most cultivated species of the genus Allium, which also includes garlic, and the cultivation goes back to over 5,000 years.
Onions come in several varieties: red, white, yellow, and green (scallions). Yellow onions are considered the sweetest-tasting
Onions are part of the allium family of vegetables and herbs, which also includes chives, garlic, scallions, and leeks. Allium vegetables have been cultivated for centuries for their characteristic, pungent flavors and for their medicinal properties.