I wish we could do petunias and geraniums, but only in the shade, and they won't last much longer. In the summer, the only plants I've found that will survive in pots in our heat/sun are Vinca's
http://evilvince.com/wp-images/VincaFlowersBlog.jpg and Asparagus ferns
http://www.shadyway.com/images/Aspar...prengeri-1.jpg will grow in Phoenix in a pot in the middle of summer. You don't have to daily water either. Of course succulents and cactus will grow, but I'm not a fan.