All plants need water to survive. However, like plants that require more water, there are plants that grow in lack of water. They are the best drought tolerant plants and can live without water for a long time.
When the Grass is Not Greener: 10 Plant Alternatives to Spruce Up Your Lawn
Thyme is a drought resistant plant that is a beautiful shade of purple. Save water and glam up your lawn at the same time! While a little foot traffic won't hurt, you should set up a walking path through the thyme to keep from damaging the plants.