Phlox divaricata subsp. laphamii 'Chattahoochee'

Woodland phlox, Phlox divaricata subsp. laphamii 'Chattahoochee’, can be tricky to grow but is worth the effort. Carpets of lilac-blue flowers appear in June, over fresh green, hairy leaves. It’s ideal for growing in large clumps at the edge of a border or beneath deciduous trees. The Royal Horticultural Society has given it its prestigious Award of Garden Merit.

GrowPhlox divaricata subsp. laphamii 'Chattahoochee’ in moist but well-drained, neutral to acid soil, ideally which doesn’t become dry in summer as this can lead to powdery mildew. A woodland border in partial shade is ideal. Take summer cuttings as an insurance against loss.