Color-mad perennial groundcover rolls out a carpet of large, high-definition-color purple blooms on floriferous spikes. Flowering like crazy late spring into mid-fall, ¡®Santos Purple¡¯s 12¡± spreading plants can lay out an island of super-rich color: massed in the sunny landscape, in the border, or mingling amid other perennials in a container. Flowering the first year, perennial thrives in heat and drought and thirsty soil. A favorite with birds, bees, and insects.