The Little Girl hybrids (Zone 5) are the result of breeding work by the U.S. National Arboretum in the late 1950s, using varieties of M. liliiflora and M. stellata as parents. In all, the arboretum released eight cultivars: ‘Ann’, ‘Betty’, ‘Jane’, ‘Judy’, ‘Pinkie’, ‘Randy’, ‘Ricki’, and ‘Susan’. These hybrids reach from 8 to 15 feet tall with an equal spread. The flower colors range from deep pink to a deep purple. They flower in midspring and therefore are less likely to be damaged by freezing weather.