The American Hemerocallis Society awards one daylily the Stout Silver Medal each year. The medal is named in honor of Dr. Arlow Stout, considered the father of the modern daylily. The Arboretum began assembling this collection in 1995. It shows the results of six decades or more of daylily breeding. As you move through the collection, note the expanded color palette, the ruffles and edges, and the larger flowers on more recent introductions. The late Max C. Olson of Des Moines donated plants and funds for this collection.