How to Trim Heuchera

Examine the plant for spent blossoms. Encourage repeat blooming by removing heuchera flowers as soon as they begin to visibly deteriorate. Cut the stem containing the spent bloom all the way down to the base foliage mound so the stem is no longer visible. Always deadhead heuchera to the basal foliage, since each stalk produces one set of blooms.

Prune heuchera plants in the spring. Remove a third to half of the old growth in the spring. Old growth stems have a thickened, woody appearance, and their removal stimulates the development of healthy new plant tissue.

Cut away any dead, diseased or injured foliage as soon as it is noted.

Avoid pinching back heuchera plants. Although most perennials benefit from regular pinching, heuchera plants bear their flowers on long, singular stalks, and pinching severely inhibits flower production.

Evaluate the overall health of the plant in spring, early in the growing season. Heucheras with excessive old, weak or diseased tissue often benefit from severe pruning, and can be cut back to the ground to encourage regrowth. This technique often reinvigorates old plants.