Dusky Challenger is quite simply an iris that is a must have in any iris garden.  It has a deep rich purple coloring with  an absolutely gigantic flower with impeccable ruffled form.  It blooms mid-season, and stands a stately 39″ tall. It can have a sweet fragrance.  (Schreiner, 1986) Honorable Mention 1988, Award of Merit 1990, Dykes Medal 1992.