This plant is easily propagated by dividing and spreading out the young plants which form around the older mature plants each year. Although the plant is generally considered a perennial any one plant may only live 7 to 10 years and then die. To insure that your whole collection of cardinal flowers do not die off at the same time be sure to propagate some new plant lines using seeds at least every 4 years.
Along with red forms of bee balm this plant is a must if you want to attract hummingbirds. In the wild it is pollinated by the ruby-throated hummingbird (Archilochus colubris).
North American indigenous peoples used root tea for a number of intestinal ailments and syphilis. Leaf teas were used by them for bronchial problems and colds, inter alia. The Meskwaki people used it as part of an inhalant against catarrh. Although not related to tobacco, it was apparently not smoked, but may have been chewed. The plant contains a number of alkaloids. As a member of the genus Lobelia, it is considered to be potentially toxic.
See also: Flowers Sydney, Flowers Melbourne, Gifts Australia