How to prune lanceleaf coreopsis

After first main flush (early to midsummer); cutdown in autumn or spring. After peak bloom, shear the entire plant back by one-third to one-half with garden shears. Cut to ground level in autumn after frost or in early spring before new growth.

One post-bloom shear; one annual cutdown. Lanceleaf Coreopsis blooms heavily in late spring and early summer. Deadheading individual flowers is tedious given the volume; instead, shear the whole plant back by one-third to one-half after the main flush to encourage a second bloom period in late summer. Cut stems to the ground in late autumn or early spring.

After peak bloom, shear the entire plant back by one-third to one-half with garden shears. Cut to ground level in autumn after frost or in early spring before new growth.