Other
practices that make the most of your water.
1.
To reduce evaporation and water loss, irrigate in the wee hours of the morning
when temperatures are lowest and winds are calm.
2.
Mow in the cooler part of the day so grass blades lose less moisture.
3.
Adjust sprinklers so they're not watering driveways, walks, etc.
4.
Divert downspouts from paved areas onto lawns or beds.
5.
Use automatic shut-off nozzle for hoses.
6.
Add a rain sensor to your irrigation system if you don't already have one.
Rethink
the amount of lawn you have
A
good rule of thumb is to restrict turf area to 35% of your property. Save the
turf for where you most need it—where you walk. Increasing groundcover, installing
landscaped beds, mulch under trees, converting yard space to patios or decks and
adding shade trees are great ways to reduce turf area and add interest to your
landscape. Lawns make our flower beds look great but it doesn't take much lawn
to achieve the effect, especially if it's neatly edged. Instead of wall-to-wall
carpeting, think of the lawn as a strategically placed area rug. Start by removing
lawn where it doesn't do well—where it's shady or steep, where the drainage
is poor or the soil depleted, or where there're too many tree roots. Replace it
with beds of native plants, which, once established, are accustomed to the natural
rainfall in a given area.
For
more information about native plants recommended for your state, see the Lady
Bird Johnson Wildflower Center's on-line directory of native plants (http://wildflower.avatartech.com/Plants_Online/Native_Plants/native.html).
Who said lawns have to
be grass?
Native grasses
can be used instead of the usual bluegrass or Bermuda. Consider buffalo grass,
mixed fescues, or sedges. For more information about sedge lawns, see the Brooklyn
Botanical Web site at http://www.bbg.org/gar2/topics/sustainable/handbooks/lawns/5.html.
Another good source for information is LessLawn.com,
a Web site about creating sustainable landscapes using low-maintenance, organic,
and wildlife-friendly techniques. It has a good article on native-grass lawns
(http://www.lesslawn.com/article1010.html)
and references to books on the subject.
In
South Florida, we're experimenting with peanut and mimosa as replacements for
St. Augustine. Both use much less water and can be walked on. Perennial peanut,
Arachis glabrata, has the advantage supplying its own nitrogen. Since it
is a legume, it can fix atmospheric nitrogen. The plant sports the typical bean-family
yellow flower. Mimosa (M. strigillosa), also called powderpuff, hugs the ground
with dark green leaves that fold at night. In spring and summer, fuzzy pink flowers
emerge.
Other ground
covers
Many other ground
covers can be used if you don't need a walk-able surface. There's no shortage
of local and regional lists from native plant societies or cooperative extension
services on the Internet or on paper. The Rocky Mountain West is blessed with
the Xeriscape Plant Guide: 100 Water-Wise Plants for Gardens and Landscapes by
Denver Water and American Water Works Association (Fulcrum Publishing, $34.95),
an excellent reference. It showcases the works of 31 Colorado artists, using photographs
or line-drawings to reveal how plants look spring, summer, fall, and winter. Even
thought it was written for western North American, it's information should apply
to most of North America and other parts of the world with similar climates and
elevations to the Rocky Mountains, the Great Basin, and western prairies.
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