How to Prune Phlox paniculata 'Larissa'?
Deadhead to prolong flowering then cut down to the base in late autumn

Phlox paniculata 'Larissa' · Phlox paniculata 'Larissa'
Thrives in any fertile, humus rich, moist soil in full sun or part shade
Deadhead to prolong flowering then cut down to the base in late autumn