Growing Bearded Irises (Iris germanica): Majestic Bearded Irises are easy to grow, and some of the most persistent perennial flowers available. Late spring blooms offer a colorful display to bridge the gap between spring-blooming bulbs and summer-blooming perennials. Distinctive sword-shaped foliage adds elegant texture to the garden, even after blooms have passed. Look for reblooming varieties for a second fall bloom. Bearded Irises grow from rhizomes, or bulbous roots that grow at a right angle from the foliage. In most areas, Bearded Irises need least 6-8 hours of sunlight a day, while in hotter climates (zones 8-11), they will need some daily shade. Plant in well-draining soil, on a slope, or in raised beds. Over time, they will spread and multiply to add even more flowers to your garden.