Dianthus barbatus [Sweet William] is a species of Dianthus native to southern Europe and parts of Asia which has become a popular ornamental garden plant. It is a herbaceous biennial or short-lived perennial plant with flowers in a dense cluster of up to 30 at the top of the stems. Each flower is 2–3 cm diameter with five petals displaying serrated edges. Wild plants produce red flowers with a white base, but colours in cultivars range from white, pink, red, and purple or with variegated patterns. The flowers are edible. Sweet William attracts bees, birds, and butterflies.