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Blue Mistflower Conoclinium coelestinum

The range distribution maps for the Blue Mistflower are from the Plants Database of the U.S. Department of Agriculture (USDA).


The Blue Mistflower, also known as Wild Ageratum, is a native perennial found in the eastern and southern parts of the United States.  It is found throughout Florida. This plant likes moist soils, such as found in wet meadows, pond margins, and roadside ditches.

This plant typically grows to a height of 1-3 feet.  The triangular-shaped leaves are about 1.5-5 inches long and have blunt toothed margins and may be marked with resin spots.  They are oppositely attached to an upright, hairy, greenish-to-reddish stem.

The branched stems produce flat clusters, 2-4 inches across, of irregular fuzzy bluish pink to bluish violet flowerheads.  Each flowerhead is about 3/8-inch wide and has 30-70 florets, each with two long stamens that contribute to the fuzzy look.  There are no petals.  The flowers bloom from summer to fall, but can bloom year-round in southern Florida.  Bees and butterflies are attracted to these flowers.

The photo on the left was taken on December 6th and shows a plant with buds. The top two photos, of the same plant, were taken about two weeks later and show the flowers in full bloom.  All of the photos were taken in Deep Creek in Charlotte County.