Clumps of Phlox paniculata (white) (Rose Hill OX4)

3 clumps of this hardy perennial flower. Will die down over winter but re-grow each spring, forms a dense clump about 2 feet (60 cm) tall with clusters of white flowers at the top (like this https://www.crocus.co.uk/plants/_/phlox-paniculata-mount-fuji/classid.20000... but no idea if this is the same variety). Depending soil and sun exposition, they can grow up to 1.5m tall.