In mid-June or early July, cut back by 1/2 to 2/3. Gaura responds to continued shearing by making producing a deep green foliage in 10” -12” mounds. Flowering will commence shortly after shearing stops. Make sure to cut the plants to the ground in mid-February leading into spring.

Do you cut back gaura for winter?

Gaura responds by growing new leaves and branches and then blooming again by midsummer to late summer and continuing until autumn. ... Don't rejuvenate-prune the plant past midsummer as the regrowth may not mature enough to rebloom well before winter.

Should gaura be cut back in the fall?

Gaura plants do best when it is cut all the way down to the roots in the fall. Many cultivars also make great container plants which helps keep gaura from getting out of control.