1. Purple Pixie - with its dwarf size and weeping habit, Purple Pixie is just the plant we’ve been crying for. Use as a groundcover, hanging basket, or a window box. The showy pink flowers combined with rich purple foliage will move you to tears. It grows only 1 to 2 feet tall by 4 to 5 feet wide. Plant in USDA Zones 7 -10 in full sun to part shade.