I am new to Arizona and have 5 wok bowls in my backyard, 3 are smallish, about 20 inches in diameter and 2 are large, about 38 inch in diameter. In the fall I planted geraniums and asylum in the larger bowls and petunias in the smaller ones. I am not sure if I want to stay with the annual plants or switch to perennials. The yard faces southwest and each of the pots have their own drip line. What would be some good suggestions for summer annuals and perennials for this type of arrangement? Any advice you guys could give would be great and GREATLY appreciated!