How to Prune Phlox divaricata subsp. laphamii?
Cut back in late spring after flowering, to promote new growth

Phlox divaricata subsp. laphamii · Phlox divaricata subsp. laphamii
Thrives in moist but well-drained, fertile soil, in part or dappled shade. Ideal for underplanting in borders or deciduous woodland
Cut back in late spring after flowering, to promote new growth