Lobelia cardinalis is a beautiful red flower that is irresistible to hummingbirds and butterflies. Plants prosper in filtered shade with moist soils or in wetter sunny sites. It will tolerate more sunlight if moisture is sufficient.The floral display lasts for 4-6 weeks ending in early autumn. It will self-seed in the fall. Foliage is generally unpalatable to deer.After seeds are produced, the flowering stem and its roots die. New offsets soon form and generate their own roots. The small offsets are vulnerable in fall and winter and care should be taken not to bury them under thick mulch layers.TRIVIA: Lobelia cardinalis was introduced to Europe in the early 1600’s. The common name “cardinal flower” was quickly adopted due to the similarity of the flower color and the garments of Roman Catholic Cardinals.