Rose of Sharon blooms on new wood, so it is important to prune out older wood much the same as one would prune a lilac to ...

Prune rose of Sharon in late winter or early spring—this avoids disease and protects summer blooms. Pruning shapes the plant, improves airflow, and can rejuvenate older bushes if cut back heavily.

There are many potential reasons for your rose of Sharon not blooming. Ideally, it should be planted in well-drained soil in full sun. If not in full sun, the flower buds may not form. If it is ...