The plumbago plant (Plumbago auriculata), also known as the Cape plumbago or sky flower, is actually a shrub and in its natural surroundings can grow 6 to 10 feet (2-3 m.) tall with a spread of 8 to 10 feet (2.5-3 m.). It is native to South Africa and knowing this provides the first clue to how to grow plumbago, along with where to grow one. Plumbago thrives in the South African heat and in the United States it is found growing year-round in the southernmost parts of Texas and Florida. Plumbago plants are sprawling shrubs with branches that resemble vines. It is prized for the profusion of blue phlox-like flowers it produces for extended periods of time. It has few pests and diseases are rare. Two additional bonuses are its deer resistance and, once established, these easy-growing shrubs also tolerate drought.