How to Propagate perennial phlox 'Roberta'?
Propagate by basal cuttings in spring, or take root cuttings in early autumn or winter

perennial phlox 'Roberta' · Phlox paniculata 'Roberta'
Grow in fertile, moist soil in full sun or partial shade
Propagate by basal cuttings in spring, or take root cuttings in early autumn or winter