Hybridized in Iowa by Ralph Haehn and introduced in 2000, this semi-evergreen diploid grows 26 inches tall. It is a perfect plant for in front of the border. Blooms are 4.5 inches in size. Buckeye Barnstormer bloomed from June 27 through August 1 last summer. It is very hardy and consistent in Wisconsin. One of the parents of Buckeye is the Stout Medal winner Siloam Double Classic. I have grown Siloam Double Classic and Buckeye definitely inherited the vigorous nature of its parent.