Silverbeet is native to the sea coast of Spain, Portugal and islands of the Mediterranean Sea. Wild sea beets are still found in the Cape Verde Islands, the Canary Islands and Sicily. Beetroot, sugar beet and forage beet are also classified as Beta vulgaris.
Silverbeet, also called Swiss chard, has been used for human consumption and animal fodder for centuries. Rainbow silverbeet has has purple, orange, yellow, pink, red or yellow stems.