Foxglove (Digitalis purpurea) is as well-known by its genus name of Digitalis because its leaves provide the drug used as a heart stimulant; the species is purpurea. Hybrid forms in many colors such as pink, yellow, and purple are available from nurseries. Its large flowers make it a favorite of the typical Ruby-throated Hummingbird. It is a biennial plant, blooming in summer. Foxglove does best in moist, but well-drained soil in areas receiving full sun or light shade, or even in full shade in hot areas.