It is typically estimated that 50% of the treated drinking water supplied to cities everywhere in the U.S., and in some foreign countries, is used for outdoor landscape irrigation. But, outdoor water- use figures often rise even higher after careful analysis of initial estimates. With so much of this water running down city streets, and because attractive waterwise landscaping so easily saves so much water (50-80% is common), it becomes increasingly compelling to target outdoor landscape irrigation for water conservation.