There are approximately 200 species of Iris .
Bearded irises are one of the most common perennials in the home garden.
They are hardy, easy to grow, and relatively trouble-free. Iris flowers are composed of 6 segments. The inner 3 upright segments are the true petals and are referred to as standards. The drooping, outer 3 segments are petal-like sepals and are known as falls. The flowers of Siberian irises are smaller and more delicate than those of the bearded irises.