Do Dianthus Bloom All Year. Many non-hybrid dianthus varieties will bloom all summer if deadheaded regularly. Jun 23 2020 Planted the prior autumn these Dianthus flowers begin to bloom in spring and can keep right on going through the first frost.
In addition the flowering of this plant occurs almost all year round. Dianthus varies in size from a few inches to 3. Deadheading or the removal of spent blossoms will help ensure constant flowers in your garden throughout the growing season.
Whether or not they come back each year depends in part on which species you have and your climate.
At this point deadheading should be done to bring back its beauty and make it bloom again. However many Dianthus varieties reseed themselves every year. Others are tender perennials or biennials meaning they live for two years. These plants are short-lived perennials but are often grown as annuals.