These perennial butterfly plants like to live in the full sun or partial shade would do as well. Some can get as tall as 6 feet, and when in full bloom they put on quite a show. While attracting several birds, bees and butterflies, this plant is host plant for the Common Buckeye butterfly. It is also a nectar plant for the Least Skipper butterfly. USDA Hardiness Zones 3 to 8.