Iris, Butterfly
Dietes grandiflora / iridioides
White butterfly iris blooms with gold and blue markings over upright evergreen fans. Same Dietes toughness as bicolor with cooler flower color.
Landscape use
Evergreen borders, mass plantings, and tough streetscapes.
Care
Full sun to part shade. Low water. Divide every few years. Cut spent bloom stalks. Mulch in hard freezes.