Hummingbirds and butterflies flock to Cardinal Flower, specifically the ruby-throated hummingbird.
The bright red two-lipped blooms of the Cardinal Flower look like dozens of vivid butterflies perched on the tall stems. Cardinal Flower plants grow 2-4 feet tall and add brilliant pops of color to the landscape. Hummingbirds and butterflies flock to Cardinal Flower, specifically the ruby-throated hummingbird.