These Dwarf Iris were up in all their colors March 3rd in 2007 in the Master Gardener's Demonstration Garden in Springfield's Nathanael Greene/Close Memorial Park. The dwarf species is Iris reticulata and it blooms before it reaches its full 6-inch height. This perennial naturalizes beautifully in Ozarks gardens. Because bulblets may take years to mature, though, gardeners sometimes plant a few new ones every year.