Few plants bloom so extravagantly for so long as this one. Deep purple flower clusters bloom from May to frost over the vigorous, ground covering foliage of 6-10". Maryland heat and drought tolerant, it is hardy in the winter to 9 degrees. They are gorgeous trailing from window boxes, hanging baskets, and any sunny spots. Trim back occasionally. Sunlight Requirements: Full Sun USDA Hardiness Zones: 7-10