For hot climates, the best landscaping requires little water. Cacti and succulents are very popular. So is the “Mediterranean-style” garden, which features sun-tolerant flowering plants, shrubs, and ornamental grasses.
Many perennials can thrive in a hot, dry summer--for example, a rainbow of flowering Echinacea varieties, dwarf rhododendrons, acacia, hydrangea, and many kinds of roses. But for upkeep purposes and sustainability, it’s recommended that homeowners in very hot, dry climates design gardens with a nice balance of hardscaping and drought-resistant plants.