Dietes iridioides
Butterfly Iris or Fortnight Lily
Description
This clumping evergreen iris bears tall, narrow leaves to 30" tall and white flowers marked purple in the center on stalks to 3' tall, appearing spring through fall. This variety has stiffer, darker foiliage than the bicolor form. It requires sun to part shade with little or no summer watering when established. This is a very reliable plant. Divide every 3-5 years to keep it looking fresh.