The United States has many different climate zones and topographic and geographic features. Each state and even areas within states differ in their ability to support different plant species without the need for supplemental water and fertilizers. The following plant lists will help you identify plants appropriate for your location. When designing your landscape for water-efficiency, be sure to choose plants that are defined as low water use or drought tolerant for your area. These plant species will be able to survive in your climate with minimal, if any, need for supplemental watering. See these simple tips for water-efficient landscaping for more ideas on lowering water use in your yard.