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Lawns Don't Waste Water, People Do!
Texas Cooperative Extension
Revised 6 July 2005 by Dr. Doug Welsh
In recent years, much attention and controversy has surrounded the water
requirement of the lawn. Misinformation and hidden agendas have fueled this
controversy; however, there are some well documented facts about the American
lawn.
The lawn is an integral component of the landscape. The lawn is certainly
the best recreational surface for children and athletes. The lawn has a
tremendous mitigating effect on the environment, reducing heat loads, noise, and water and air pollution.
A lawn is second only to a virgin forest in the ability to harvest water
and recharge groundwater resources. As a design component, the lawn
provides landscape unity and simplicity while inviting participation in
the landscape.
The lawn has become a focus in reducing landscape water use because of the
tremendous opportunity for abusive use of irrigation water in an effort of
maintaining the lawn. Within the traditional landscape, the lawn has received
the major portion of the total landscape irrigation. Lawn irrigation can
be reduced, while the homeowner continues to derive the many benefits of
turfgrass.
Specific strategies to reduce lawn irrigation include:
- Place lawn areas into landscape irrigation zones based on water requirements,
so that lawns can be watered separately from other landscape plantings
- Select adapted, lower-water demand turf species and varieties
- Use irrigated lawn areas only in areas which provide function (i.e.,
recreational, aesthetic, food traffic, dust and noise abatement, glare reduction,
temperature mitigation)
- Use non-irrigated lawn areas where appropriate
- Irrigate properly based on the lawn's true water needs
- Increase mowing heights to decrease lawn water use and stress
- Decrease fertilizer rates and properly schedule fertilizations
By implementing these strategies, homeowners can reduce lawn irrigation
requirements and still reap the many benefits of a cool, green lawn.
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