Deadheading of spent flowers will promote new blooms, although this can be tedious. Midsummer shearing (after the first flush of flowers) should help tidy up the plant and promote a fall rebloom.

Does coreopsis bloom more than once?

Plants in the coreopsis species have a moderate growth rate and are best planted in the spring after all risk of frost has passed. Annual varieties will start blooming in early summer and repeat bloom periodically through the fall, while perennial varieties will begin blooming the second year after planting.

Will coreopsis rebloom if cut back?

During Blooming Season

You may value coreopsis plants for their blooms, which often last through the end of summer. But you won't get maximum blooming unless you deadhead, or cut off finished flowers, regularly. Using pruners, cut off spent blooms at least once a week before they go to seed.