Most people don't know what has happened to their lawns until it's too late. If you're lawn suddenly looks bad, it could be bugs, rather than not enough water. See the links below for important information about chinch bugs.
Here is a link that offers flowering plants that can take the sun with little water. You may want to read and consider these plants for your own landscaping at home. We may consider some of these, especially with our current drought conditions in Houston, TX. High Heat Flowers for Hot Summer Areas