How to prune iron butterfly tiarella

Deadhead after late-spring flowering; remove damaged leaves in early spring. Cut spent flower stems to the base once blooms fade. In early spring, pull or trim dead leaves from the crown without disturbing the growing points. Divide congested clumps in spring every 3–4 years.

Deadhead after flowering; light spring tidy annually. Iron Butterfly Tiarella is a compact, clump-forming cultivar that requires very little pruning. Remove spent flower spikes at their base after blooming in late spring. In early spring, trim away any winter-damaged or dead leaves from the crown. Beyond these simple tasks, the plant maintains itself well and does not need cutting back hard.

Cut spent flower stems to the base once blooms fade. In early spring, pull or trim dead leaves from the crown without disturbing the growing points. Divide congested clumps in spring every 3–4 years.