Some of its common names are blue mistflower, wild ageratum, and blue boneset.
Its Latin name is Conoclinium coelestinum.
It is found in the Asteraceae, or aster, family.
Blue mistflower is a wildflower that grows to a height of approximately 3 feet.
It produces a profuse amount of seeds and will create a colony of plants if allowed to.
Blue mistflower leaves are stalked and opposite on the stems.
The leaf margins are toothed.
The leaves are ovate to almost triangular in shape with a wrinkled texture and 3 veins.
The blue flowers appear in the summer and fall.
It occurs naturally in moist meadows, roadsides, woodland borders, riparian areas, and wet woodlands.
It is native to the following states: AL, AR, DC, DE, FL, GA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, TN, TX, VA, and WV.
In the home landscape it grows in full sun to part shade. It looks best en mass in a natural setting because the flowers are small. It can be grown in containers as well.
The flowers are a nectar source for many small insects.
Propagation is achieved by growing it from seed or transplants.
Rather large plants will transplant well if kept very moist and the flowers removed.