Ageratum houstonianum References Images Ageratum houstonianum plant Ask Anything Homework Help Also known as: blue mink, floss flower Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: 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 MoreThe 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