Mostly found in the partial sade at woodland edges, Dame's Rocket white to purple flowers are easy to see when in bloom in May & June. There's an especially large stand in the Forest Preserve property at Hibbard and Sunset.
How to Recognize It
Dame's Rocket looks much like Phlox, but with four petals (ranging from white to pink) instead of five on plants usually 2-3 feet tall.
Why to Like
Dame's Rocket has been grown as a garden ornamental since the Roman Empire. Introduced from Europe, it sometimes invades partially-shaded natural habitats.