Lobelia cardinalis - Cardinal Flower
If you are looking to attract hummingbirds, this is the plant. It is a brilliant red color and they love it. It thrives best in wet soil, will tolerate slightly drier soils, but not too dry. The basal foliage will remain all winter, and should not be covered with leaves or mulch during the winter. A light cover of pine needles is alright, so the sun can get to the leaves.
Sun to Semi-shade, Moist to Wet Soils, Fall, 3-4ft Tall, Zones 3-10