Phlox maculata 

Wild Sweet William 

• Moderately high moisture to average soils
• Full Sun to Partial Shade
• 36” tall 12” to 18” wide
• Summer blooms
• Thrives in open woodlands or meadows with sufficient moisture

New to me, grown from seeds from Prairie Moon Nursery https://www.prairiemoon.com/phlox-maculata-wild-sweet-william-prairie-moon-nursery.html 

With a historical range that extends south and east from New York state, these are native to the North-East but not to Ontario.

A parent species of some of the Phlox cultivars that you can find in the horticultural trade, these share their same vulnerability to mildew and spider mites if they are stressed by lack of consistent soil moisture that is common to Garden Phlox.

At their best with consistent moisture and when given some shade during the hottest part of the day, these would thrive in high moisture meadows and in dappled shade settings in open woodlands.

Flower colour varies from pale lavender to medium pink.

-Not to be confused with the four-petaled Eurasian Dame’s Rocket (Hesperis matronalis) that has filled fencerows and roadsides through much of the North East, these can easily be distinguished from those by their five petaled flowers, which are typical of Phlox species.

Please check out the Prairie Moon listing at the link above for more details.

Photo by Robert H. Mohlenbrock via Wikimedia Commons