Phlox laphamii ‘Blue Buttons’ has deep lavender-blue, fragrant blooms over low mounds of very narrow dark green foliage in late spring. Also known as Wild Sweet William or Woodland Phlox, Phlox laphamii ‘Blue Buttons’ can form large drifts as its leafy shoots root at the nodes as they spread along the ground. It will also self-sow. A semi-evergreen perennial, Phlox ‘Blue Buttons’ attracts early spring pollinators.

A subspecies of Phlox divaricata, Phlox laphamii is native to the eastern 2/3 of U.S. north into Canada.

Phlox laphamii ‘Blue Buttons’ prefers partial to full shade and humus-rich, well-drained soil. It is drought tolerant, but maintain consistent soil moisture for best appearance. Cut back hard after flowering if powdery mildew is a problem.