Ageratum houstonianum Directory References Images Discover All 119 References in “We Didn’t Start the Fire,” Explained Vietnam War Timeline How Many Countries Are There in the World? The Death of Shakespeare A Timeline of Environmental History 26 Decade-Defining Events in U.S. History 6 Animals That Eat Their Mates Contents Ageratum houstonianum plant Also known as: blue mink, floss flower Learn about this topic in these articles:use as edging plant In ageratumThe common garden ageratum (A. houstonianum), also known as floss flower and blue mink, is frequently cultivated as an ornamental annual. Several dwarf varieties are commonly used as edging plants.Read More