|University of Saskatchewan|
|North Dakota State University Agriculture and University Extension|
|University of Georgia College of Agricultural and Environmental Sciences|
|Center for Invasive Plant Management|
|The Town of Superior, Colorado|
Landscaping concept that requires less water on vegetation that is suited to soils and climate. The term was developed by Denver Water in 1981 (by Becki Smith). It is derived from the Greek word Xeros, meaning dry.