Sweet William (Dianthus Barbatus) is a biennial herb in the Caryophyllaceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 3-9. This plant is toxic to cats and dogs — keep it out of reach of pets. It can be grown indoors.

Dianthus barbatus, commonly known as Sweet William, is a biennial or short-lived perennial prized for its colorful, fragrant flower clusters.