How to prune coreopsis grandiflora 'early sunrise'

Deadhead throughout summer; hard cut-back in late autumn or early spring. Remove spent flower stems to the nearest lateral bud during the growing season. In late autumn, cut the whole clump to within a few inches of the ground with shears or secateurs.

Deadhead every 1–2 weeks during bloom; full cut-back once annually. Deadheading spent blooms prolongs flowering significantly through summer. Cut stems back to a lateral bud or basal leaf. After the main flush, shear the whole plant by about one-third to encourage a second wave of bloom. Cut back hard to ground level in late autumn or early spring to tidy and promote vigorous new growth.

Remove spent flower stems to the nearest lateral bud during the growing season. In late autumn, cut the whole clump to within a few inches of the ground with shears or secateurs.