Dear Steve and all; Jim Mc has pointed out a really nice little spuria, I. graminea. About as fool proof as they come and fits anywhere. As Carolyn and others have suggested, as spuria sit in one place they can get big some with foliage approaching 4 feet, flower spike higher and a 25 year old clump can be 20 feet across (but fabulous in bloom). In a happy place they are trouble free, consistent bloomers and unique. I hope you'll be happy with your new additions. Best Jim W. ps Iris orientalis (also known as I ochroleuca) is often seen here in old farm steads. The farm is long gone, but a patch of white and yellow or along a fence row marks the spot. They persist unattended for decades on our prairie sites. -- Dr. James W. Waddick 8871 NW Brostrom Rd. Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 Zone 5 Record low -23F Summer 100F +