Parsley is a species of Petroselinum in the family Apiaceae. Highly nutritious, parsley can be found year round. The delicious and vibrant taste makes it a popular table garnish. Parsley is the world’s most popular herb. It derives its name from the Greek word meaning “rock celery” (parsley is a relative to celery). It is a biennial plant that will return to the garden year after year once established.