Dianthus barbatus also known as Sweet William or Bearded Pink is from the Caryophyllaceae family of plants. Dianthus barbatus is a biennial in the pictures below it has white flowers but it also can be found with pink, purple, dark pink, and reddish flowers in spring and summer. Dianthus barbatus is native to Southern Europe and part of Asia.
Grow Dianthus barbatus in full sun. Plant it preferably in well-drained but moist and fertile soil, it could be a slightly acid soil. Dianthus barbatus grows to about 0.5 meters or 1.5 ft.
You can propagate this plant by seed. If you are planning to grow from seed late spring is probably the best time so you can place them in the final position in autumn for next year. Dianthus barbatus is somewhat sensitive to rust so watch out. Just cut off dead flowers for continuous flowering.
Also read about Dianthus deltoides