Holiday Party is a hardy dormant tetraploid that thrives in Wisconsin. Hybridized by the late Frank Kropf in Missouri, and introduced in 1996, this consistently double daylily grows 32" tall and has 6" blooms in my garden. Holiday Party started blooming on July 4, and will no doubt continue into August. She's a keeper!
American Daylily Society Award: Honorable Mention: 2007