Irises are hardy plants (able to survive outside during winter) that are easy to grow. They attract butterflies and hummingbirds. Irises are a favorite
cut flower. The bearded irises (Iris germanica) is the tallest at about 28 inches (71 cm). Irises have three large petals on the outside called "falls". They have three inner petals called "standards". Irises that are called bearded are because of soft hairs growing in the center. Irises that are called combed have a ridge of hairs in the center. A common name for some species is 'flags'. Plants of the subgenus
Scorpiris are widely known as '
junos', particularly in horticulture.