Dill (Anethum graveolens) is an annual herb in the celery family Apiaceae. It is the only species in the genus Anethum. Dill is grown widely in Eurasia where its leaves and seeds are used as a herb or spice for flavouring food.
Fresh and dried leaves are widely used as herbs in Europe and central Asia.
Like caraway, the fernlike leaves of dill are aromatic and are used to flavor many foods such as gravlax (cured salmon) and other fish dishes, borscht, and other soups, as well as pickles. It is best when used fresh, as it loses its flavor rapidly if dried, however, freeze-dried leaves retain their flavor relatively well for a few months.