Native to Chile, rock purslane (Calandrinia spectabilis) is a frost-tender perennial that, in mild climates, produces masses of bright purple and pink, poppy-like blooms that attract bees and butterflies from spring until fall. The foliage is an attractive shade of bluish-green. Rock purslane plants are suitable for growing in USDA plant hardiness zones 8 and above. They can withstand temps as low as 25 F. (-4 C.) and tolerate drought like a champ. In cooler climates, you can plant rock purslane as an annual. This versatile, spreading plant works well in rock gardens and is an ideal plant for xeriscaping. Rock purslane plants are also deer resistant.