We can reduce both water consumption and contamination by altering the
landscape so that its water requirements are met largely by natural
precipitation. The term "xeriscape" is used to describe this approach. It
means "water conservation through creative landscaping." It is a
registered trademark of the National Xeriscape Council, Inc. of Austin,
Texas, a non-profit organization dedicated to water conservation.
The principles associated with the concept of xeriscape have been long
advocated on the Prairies. They include: appropriate planing and design,
soil improvement, efficient irrigation, practical turf areas, appropriate
plant selection, use of mulches, and maintenance.
Most Prairies gardeners have been using some or all of the xeriscape
principles for years simply because it made common sense to do so. The
word is what's new (except to the Greeks). The principles and practice
are not.
The benefits of xeriscape are many. Reduced water consumption is
environmentally as well as financially friendly. And, like it or not, in
the future, the water supply we now take for granted simply may not be
available. The xeriscape principles such as design, mulching, and
efficient irrigation also reduce landscape maintenance. The xeriscape
principle of appropriate plant selection has the added benefit of
reducing fertilizer and pesticide use.
by Sara Williams
http://www.ag.usask.ca/cofa/departments/hort/hortinfo/yards/xeri1.html