How to Prune long-leaved Jerusalem sage?
Cut back to the ground as the foliage dies down, flower heads can be left until spring if upright for winter interest

long-leaved Jerusalem sage · Phlomis longifolia
Will grow nicely in fertile well-drained soil in full sun and will tolerate some partial shade
Cut back to the ground as the foliage dies down, flower heads can be left until spring if upright for winter interest