How to prune rose of sharon 'blue bird'

Late winter to early spring, before new growth begins. Cut all stems back by one-third to one-half using clean loppers or pruning shears. Remove any dead, crossing, or inward-facing branches entirely at the base to open up the shrub's center and improve airflow.

Annually. Yes, Rose of Sharon 'Blue Bird' benefits from annual pruning. It blooms on new wood, so hard pruning in late winter or early spring encourages vigorous growth and better flowering. Remove crossing, dead, or weak stems. You can cut back hard by one-third to one-half to keep it compact and floriferous.

Cut all stems back by one-third to one-half using clean loppers or pruning shears. Remove any dead, crossing, or inward-facing branches entirely at the base to open up the shrub's center and improve airflow.