The Black Diamond 'Purely Purple' Crape Myrtle is a stunning, low-maintenance ornamental shrub/tree known for its deep, nearly black foliage in spring and vibrant, amethyst-purple flowers from summer into fall, blooming on new wood and ideal for zones 7-9, perfect for containers or landscape use due to its drought/mildew resistance and compact, semi-dwarf size (10-12 ft).