Definition of Xeriscape:a landscaping method developed especially for arid and semiarid climates that utilizes water-conserving techniques (such as the use of drought-tolerant plants, mulch, and efficient irrigation).
This means the plants you choose for a xeriscape garden can ensure a beautiful, low-maintenance garden once the plants are established.
Fun Fact: The Water Department of Denver, Colorado, is credited with creating this term. - “Xeriscape.”Merriam-Webster.com Dictionary, Merriam-Webster.