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1. Thoughtful landscape planning & design - Begin
with a plan, whether it’s a new or remodeled landscape. A good design will
avoid wasting your water, time, and money. Think long-term, and be realistic
about the space requirements of mature plants. This will help you avoid
maintenance headaches later on.
2. Select low-water-use plants - Many books exist
on this subject, and hundreds of native plants, as well as plants from other
low-rainfall regions, are adapted to grow in the Sonoran Desert. Keep Principle
Number 1 foremost in mind before buying plants for your Xeriscape. A good
design is invaluable in selecting and combining water-efficient plants that will
add beauty and utility to your outdoor areas.
Free drought-tolerant, low-water-use plant list for your area.
3. Appropriate turf (lawn) areas - Lawns use a lot
of water. For that reason, include them when only a lawn will do, as in a
children’s play area. Keep the lawn area small and simple in shape, and border
it with low-water-use plants. Select adapted grasses such as hybrid Bermudas.
Avoid lawn for use only as a ground cover -- use other water-efficient ground
covers instead. Inorganic mulches such as decomposed granite use zero water and
can be effective as well.
4. Efficient irrigation - Drip-irrigation systems
are efficient at applying water to plants in the right amounts at the root
zone. Use a timer and adjust schedules as plant needs change with age and from
season to season. Check systems regularly to be sure they are working
properly. If you water with a hose, learn the water requirements of all your
plants -- they can vary quite a bit. Check soil for moisture to see if plants
actually need water. Avoid sprinkling; water deeply and infrequently
after new plants are established.
5. Improve the soil - Adding organic matter to the
soil before planting increases its water- and nutrient-holding capacity, which
improves plant growth and efficient use of water. Annuals, perennials, and
vegetables -- plants that are planted in close proximity to one another -- are
prime candidates. Low-water-use native trees, shrubs, and ground covers usually
do just fine in unimproved existing soil, but they often appreciate organic
mulches. (See Principle Number 6.)
6. Use mulches - Mulch is a layer of just about
any material -- organic or inorganic -- that covers the soil over the root area
of plants. Mulch reduces moisture loss through evaporation, insulates plant
roots from heat and cold extremes, and cuts down on weed populations that steal
water and nutrients from your plants. Add a few inches of organic mulch each
spring -- it will decompose to improve the soil.
7. Appropriate maintenance - Healthy plants grow
and look better, as you would naturally expect, and use water more efficiently.
Prune properly at the right time of year. Do not prune heavily at any one time,
particularly during summer. Keep a close and regular eye out for pests and
diseases. You want to spot them early when controls are easier and more
effective. Keep up with weeds. Don’t over-fertilize, which can result in
excessive plant growth that requires even more pruning.
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