This document provides a guide for homeowners on how to conserve water in their landscapes through BayScaping principles. It discusses why conserving water is important as the population grows, and provides tips for reducing outdoor water use such as proper timing, thorough watering, using the right equipment, mulching, and plant selection. Additional ways to conserve water outlined include controlling runoff, replacing lawn with alternative landscapes, and recycling water. The guide aims to help homeowners become water wise while contributing to healthier local waterways and the Chesapeake Bay.
Northwest Arkansas Rain Gardens
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For more information, Please see websites below:
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Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
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Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
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Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
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Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
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Healthy Foods Dramatically Improves Student Academic Success =
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City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
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Simple Square Foot Gardening for Schools - Teacher Guide =
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Western Washington Rain Garden Handbook
`
For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
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Bayscaping to Conserve Water: A Homeowner's Guide - Chesapeake Bay, Maryland
1. BayScaping to Conserve Water - A
Homeowner's Guide
BayScapes are environmentally sound landscapes benefiting people, wildlife
and Chesapeake Bay. BayScaping advocates a "holistic"approach through
principles inspired by the relationships found in the natural world.
• Why is conserving water in landscapes
important?
• How can we reduce outdoor water use?
• How can I provide water for wildlife?
• How else can I use water wisely in my
landscape?
• Suggested reading list
• Other resources
• BayScapes Action Guide: A Home Landscape
Audit for Conserving Water
Why is conserving water in landscapes important?
The population in the Chesapeake Bay watershed continues to grow by leaps
and bounds. It is anticipated that no fewer than 3 million new residents will
make the mid-Atlantic region their home during the next 25 years. This will
undoubtedly put serious strains upon natural resources, including fresh water.
In some households as much as 40 percent of the water used each month finds
its way into the landscape, so future fresh water supplies depend upon wise
outdoor water use.
Water-wise landscaping means many things. It means evaluating how much
water the lawn and landscape really need, learning how and when to apply
water in the landscape, understanding that plants thrive with well developed,
deep root systems, using plants with lower water requirements and minimizing
water waste in the garden. In the Bay region, water-wise landscaping, or
2. xeriscaping, is one of the BayScapes program principles. Keep in mind that
excess, or wasted, water runs off the land carrying nutrients, sediments and
even traces of toxic products into nearby creeks and streams.
Protection of local waterways feeding into the Bay, therefore, hinges upon
reduced surface water runoff. Each of us must make an individual effort to
steward our shared water resources. This guide provides tips to help you
become water-wise and explains how water conservation contributes to healthy
rivers and a healthy Bay.
How can we reduce outdoor water use?
You can reduce the amount of water used to maintain your lawn and garden
with little significant expense or serious effort. For the most part, reducing water
use means changing the way you have watered in the past. Key elements
include: timing, thoroughness, proper equipment, mulching, plant selection and
water zoning. Together, they can cut your normal water use by as much as two-
thirds during summer months.
Timing means watering plants and lawns only when they need it. Too often,
lawns are watered as an automatic reaction to hot temperatures. Instead, you
should water the lawn when it has shown you it is thirsty. A thirsty lawn is easy
to spot: when walked on, the grass will lie flat and reveal footprints. Similarly,
shrubs show you they need water by wilting. In both cases, water during the
coolest part of the day to avoid unnecessary evaporation. Early morning or
early evening hours are generally best.
Thoroughness means watering sufficiently. Water deeply and carefully, but not
too often. Thorough watering promotes stronger root systems, enabling plants
3. to find below-surface water during droughts or hot spells. Watering too lightly or
too often actually harms plants by encouraging shallow root systems. Shallow
roots make landscape plants more vulnerable to temperature extremes and the
damage caused by drought and disease.
Proper equipment applies water carefully and prudently, and you cannot expect
to significantly reduce water use without it. For example, standing with a water
hose and a spray nozzle watering your lawn is both time-consuming and
ineffective, since the lawn is not getting a deep soaking. If you follow timing
guidelines, water sprinklers do an excellent job of deep watering. Adjust the
sprinkler position as each area of the lawn has been thoroughly soaked. For
shrubs and flower beds, soaker hoses deliver deep watering over a few hours.
The most efficient way to thoroughly water shrubs, flower beds, vegetable
gardens and container gardens, however, is with a drip irrigation system
hooked directly to your hose. Drip irrigation sends water straight to a plant's
roots with virtually no loss to evaporation.
Mulching shrub beds, flower beds and vegetable gardens results in dramatic
water savings. Most people use wood chips, shredded hardwood and softwood
bark, grass clippings, and tree leaves as mulch. A mulch cover 3 to 4 inches
deep will significantly reduce evaporation loss and prevent unwanted weeds
from sprouting in your garden. Remember not to pile mulch too high against the
base of a tree or shrub to avoid deterioration of the outer skin layer that may
damage or possibly kill it. Mulch can be purchased in 3-cubic-foot bags, or in
bulk by the pickup truck or dump truck load. Your local municipality may even
offer mulch on a pickup basis at no charge or a nominal fee.
Plant selection plays an important role in reducing water use. Drought-tolerant,
or xeriphytic, plants available at nurseries and garden centers require very little
water to thrive in the Bay region. "Xeriscaping" is an emerging landscape
philosophy centered around water-wise landscaping. It has gained tremendous
4. acceptance in arid parts of the United States, such
as the desert southwest, Texas and California. The
new focus on drought-tolerant or low water-use
plants has stimulated nurseries and garden centers
in the Bay region to expand their stock, and they
now offer many species to choose from today.
Water zoning means laying out your landscape,
lawn and garden areas in zones according to water need. High water-use
plants, such as colorful flower beds of bulbs, perennials or annuals, are
grouped very close to the house and walkways to be enjoyed from both outside
and inside the house. Group medium water-use plants as well as lawn areas a
bit farther out from the house, and plant low water-use plants, such as natives,
on the perimeter for screening and privacy.
How can I provide water for wildlife?
By practicing water conservation techniques you will be able to allocate water
for the wildlife. Water is critical to Bay area inhabitants, since naturally occurring
sources are declining or seasonally stressed. Direct watering can be as simple
as putting out a bird bath or a shallow pan of water to provide a drink for thirsty
birds, butterflies, and other wildlife passing through your yard. For frogs, turtles,
salamanders, fish and other aquatic species, you may want to provide a small
garden pool, complete with nearby plantings of berry or nut-bearing varieties of
trees and shrubs. Provide water for shy animals near a brush pile or other safe
cover. No matter how you provide wildlife with water, you will be pleasantly
rewarded.
5. How else can I use water wisely in my landscape?
There are a number of additional ways to conserve water through wise
practices. These include controlling runoff from your yard, replacing lawn areas
with alternative landscapes, providing mulch cover for bare spots in your yard,
aerating your lawn, and recycling water to your garden and yard.
You can do many things to reduce and control water running off your yard.
When rainstorms hit, a tremendous amount of water falls rapidly to the yard
surface, where it accumulates quickly and runs to lower ground. This runoff has
the potential to carry nutrients (especially nitrogen and phosphorus) from lawn
fertilizers and toxic substances from pesticides, which can cause problems for
receiving streams and, ultimately, the Bay.
Runoff can be reduced by planting a mulched shrub bed or border at the low
end of your yard to slow velocity. Altering the grade of your lawn can redirect
fast moving runoff so it slows down and possibly supplies water for other plants.
Trapping runoff can result in the creation of a miniature wetland in a small,
inconspicuous part of your yard, enabling you to add wet-soil plant varieties to
your landscape.
Replacing areas currently in lawn grass will make a big difference in your total
landscape water requirements. Lawns require tremendous amounts of water.
Where appropriate (and where legally permitted), wildflower meadows serve as
colorful low-maintenance substitutes for lawns. On slopes or in heavily shaded
areas, ground covers provide an excellent alternative requiring less water. Even
converting a relatively small area to trees and shrubs will significantly save
water over the course of a growing season.
6. Mulching bare spots in the yard can reduce both runoff and the amount of
sediment that accompanies it in storm events. Bare spots generally occur
where foot traffic has worn grass thin, where quickly moving water has
undermined the root system and where the ground has recently been replanted.
Consider a mulch cover, however temporary, to remedy the problem.
Lawn aeration significantly affects how water infiltrates, or percolates into, the
underlying soil. A rented aerating machine operated much like a lawn mower
will remove small earth cores from the lawn, leaving thousands of tiny holes for
surface air and water to contact the root zone. When performed just prior to
fertilizer application, aeration helps fertilizers penetrate the soil surface.
Recycling water may not be a conservation solution that all Bay residents can
pursue but, where appropriate, it makes a significant difference in the amount of
fresh tap water necessary to keep lawns and landscape plants alive and well.
Gray water is water that has been used once but has not been contaminated to
the point where it cannot be used again. Gray water, such as recycled sink
dishwashing water or washing machine water (if filtered), can be piped through
a 5/8 inch garden hose directly to where it is needed or fed into a reservoir for
later use, perhaps after cooling. A little plumbing is required, but the savings in
water use make the procedure readily justified! Be sure to first check local
ordinances for permit requirements and written approval.
Where the use of gray water is prohibited, homeowners can recycle rain water,
especially that which runs off the roof into gutters and downspouts. A container
placed at the base of a downspout will provide fresh water for your garden and
outdoor plantings at no cost while reducing erosion and runoff during heavy
rains. Do not try to revamp all of your landscape water use practices at once.
Study how you currently use water and then establish immediate and long term
steps to conserve. You will be rewarded with less maintenance, lower water
bills and the knowledge that you are helping wildlife as well as local streams
7. and Chesapeake Bay.
Xeriphytic (Low Water-use) Shrubs
Size Evergreen/
Common/Scientific Name Preferred Soil Type
(feet) Deciduous
Creeping Juniper
2 E Tolerates any soil type
Juniper horizontalis
Juniper
2-30 E Tolerates dry, poor soil
Juniperus communis
Bayberry
4-8 E Tolerates dry, poor soil
Myrica pensylvanica
Black Chokeberry
3-6 D Tolerates wet, acid, or dry soil
Aronia melanocarpa
Gray Dogwood
8-15 D Tolerates any soil type
Cornus racemosa
Elderberry
6-12 D Needs deep, well-drained soil
Sambucus canadensis
Coralberry Indian Currant
3-6 D Tolerates poor soil
Symphoricarpos orbiculatus
Highbush Cranberry
12 D Needs well-drained, acid soil
Viburnum trilobum
Suggested Reading List
Sawyers, Claire E. and Barbara B. Pesch, eds. Gardening with Wildflowers and
Native Plants. Handbook #119, Brooklyn: Brooklyn Botanic Garden, Inc., 1989.
8. Schmidlin, Wilfred V. and Barbara B. Pesch, eds. Water Gardening. Brooklyn:
Brooklyn Botanic Garden, Inc., 1985.
Schneck, Marcus. Your Backyard Wildlife Garden. Emmaus, Penn.: Rodale
Press, 1992.
Parker, Cecilia I., ed. Planting an Oasis for Wildlife. Washington, D.C.: National
Wildlife Federation, 1986.
Calkins, Carroll C., ed. Illustrated Guide to Gardening. Pleasantville, N.Y.: The
Reader's Digest Association, Inc., 1978.
Hightshoe, Gary L. Native Trees, Shrubs, and Vines for Urban and Rural
America. New York: Van Nostrand Reinhold, 1988.
Other resources
• Backyard Wildlife (monthly newsletter), Marcus Schneck Communications,
Emmaus, PA 18049, (215) 481-9452.
• The Lawn Institute, P.O. Box 108, Pleasant Hill, TN 38578.
• Urban Areas Habitat Pac, National Institute for Urban Wildlife, 10921 Trotting
Ridge Way, Columbia, MD 21044.
• National Xeriscape Council, P.O. Box 163172, Austin, TX 78716-3172.
For More Information
For detailed specific instructions for the safe use of fertilizers and pesticides in
your community, contact your local or area Cooperative Extension office. The
Cooperative Extension is a service of the land-grant university systems in the
District of Columbia, Maryland, Pennsylvania and Virginia.