Louisiana Iris - 'Southdowns'

R1992, Patrick O'Connor.  Sdlg. 80-6.  Upon opening, the petals are a web of fine purple veins over a white suffusion. Quickly fades to what appears to be ice blue. Styles creamy white.  Orange spear signal.  Cajun Caper x unknown. 38", E.  This is a vigorous garden iris, one of the few icy blues available.  Looks great in the light of early evening.  Pollen parent is almost surely Mac's Blue Heaven, although a bee did the work.