Sweet aroma.

This classic, lush, dark blue bearded iris with wavy petals is ideally suited for the iris named in honor of the celebration of the centennial of the famous Presby Memorial Iris Garden in 2027. For many years, the garden has served as a repository of historical varieties of irises, from the earliest to modern ones, presented at the National Convention of the American Iris Society in 2026. The velvety dark blue petals of Presby Royal Jubilee are framed by large orange "beards" that end with intriguing dark blue tips. There are 9–10 buds on three branches and a spurce.