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Extension > Garden > Yard and Garden > Landscaping > Native plants for sustainable landscapes: Establishment and management of lakeshores and gardens

Native plants for sustainable landscapes: Establishment and management of lakeshores and gardens

Vera Krischik, Associate Professor, Entomology, University of Minnesota
Catherine C. Reed, Research Associate, Entomology, University of Minnesota
Serena E. Willey, Research Assistant, Entomology, University of Minnesota

Sustainable landscapes and management

Native plants can be used around homes and in gardens to create sustainable landscapes. Most native plants are perennial and have extensive root systems that hold soil and slow runoff. Persistent stems, leaves, and flower parts which remain through the winter also reduce runoff, especially in the spring, as snow melts and rainfall begins before new growth is present. Particulate matter accumulates around these native plants and the plants themselves absorb chemicals such as nitrogen and phosphorous that would otherwise enter the runoff.

Native plants have many positive characteristics. Native plants used as buffer strips along water margins slow runoff and absorb nutrients. They are also self-sustaining, and they support wildlife including beneficial insects, pollinators, and native birds.

Successfully growing native plants requires an understanding of the evolutionary adaptations plants make to specific light and soil moisture conditions. Prairie plants have adapted to dry, sunny uplands, while woodland plants tolerate shade. Wet meadows contain plants species tolerant of sun and wet soils, while plant species in the emergent zone grow with their stems above water and their roots in water. Submerged or floating leaf plants have stems and leaves under water with some parts above water.

Once established, these landscapes can be managed by using principles of Integrated Pest Management, which emphasize lower pesticide usage. These sustainable landscapes require less chemical treatment, reducing the amount of chemicals put into the environment which have nontargeted effects on the ecosystem, its plants, and its animals.

This bulletin contains information on sustainable landscaping in watersheds, sustainable management of such landscapes, lists of vendors who sell native plants and erosion control materials, and an extensive list of recommended native plants. Landscapes and their management are described for drier upland gardens as well as shoreline buffer strips.

Traditional landscapes

traditional

Sustainable landscape

sustainable

Convert upland gardens and shorelands to wildlife havens by planting native species and practicing sustainable management. (MNDNR). Copyright 1998, State of Minnesota, Department of Natural Resources, Section of Fisheries.

Benefits of sustainable landscapes

Sustainable landscapes protect water quality

Sustainable landscapes increase biodiversity

Sustainable landscapes provide social benefits

Site considerations for designing a sustainable landscape

buffer-strip

Landscape plan with buffer strip. Used with permission of Fred Rozumalski, design and Reseanne Esparza, drawing.

When designing a sustainable lakeside landscape, information is needed about the lot and adjacent lakeshore, including water runoff patterns, so that erosion can be prevented and water quality improved. Microhabitats must be identified so that suitable plants can be chosen and adequate numbers of plants can be grown or ordered. The ordinary high water level of the lake must also be determined since Minnesota Department of Natural Resources regulations apply to areas below this level. All this information can be organized and summarized into a plan based on your needs and preferred property uses. If desired, there are landscape design firms which can be hired to help develop plans.

The Minnesota Department of Natural Resources has an excellent book on landscaping, Lakescaping for Wildlife and Water Quality, by Carrol L. Henderson, Carolyn J. Dindorf, and Fred J. Rozumalski. Ordering information can be obtained from the Gift Shop (651-228-9165) or Minnesota's Bookstore (651-297-3000).

Planning to complement activities

Landscape to complement your activities. For example, if a large lawn is not needed, parts of an existing lawn can be replaced with ground covers, perennials or shrubs. Note areas where views may be enhanced or screened with vegetation. Do not disturb areas with natural vegetation. Plan to install bird feeders and bird houses and benches to sit on to enjoy the view.

Accessories in the landscape are signs of a cared for and well-managed property. These elements of care show neighbors that the property is not neglected, and they are especially valuable in unconventional landscapes.

Correcting and avoiding erosion problems

Storm water management needs attention since water carries soil into the lake and cuts gullies. If serious erosion problems are developing, seek the advice of your watershed district, or county extension specialists.

Some erosion can be reduced by proper landscaping. Tour your property during heavy rain to observe runoff patterns. Work with your natural topography, and keep water quality in mind.

Steep slopes need careful planting to control erosion. Gardens should not be located on steep slopes unless the area is terraced perpendicular to the slope. Paths on the shore from house to water line should run diagonally rather than straight down a hill. Eroded paths should be replaced with steps. Hard surfaces that allow water to run off should be replaced with porous surfaces such as gravel or mulch.

Selecting plants

Native plants are hardy, do not require fertilizer once established, and provide food and habitat for native animals. Most native species are perennial, and they also maintain themselves by reseeding on the same site. In contrast, popular bedding plants such as petunias and geraniums often provide little value for wildlife and must be replanted each year.

Though many exotic perennials can be adapted to local climates, they may not be as valuable in supporting beneficial insects such as predators, pollinators, and butterflies. Horticultural varieties of native plants, which could also be used, have been altered in ways that reduce their value as food to animals. For instance, double flowers provide little nectar to butterflies, bees, and beneficial insects.

It is also important to know that the use of some exotic plant species is illegal. Buckthorn and purple loose-strife, for example, are exotic plants that escaped from cultivation and have become serious pests in natural areas.

Identifying microhabitats or zones

Habitats within the landscape need to be identified based on light and moisture regimes so that proper plant species can be added to each such microhabitat. Dry, sunny locations support prairie vegetation, while areas under trees are preferred by shade-tolerant species. Places with wet soils support wet meadow vegetation. An emergent zone is an area of shallow water. And a submerged, floating leaf zone, supports plants that grow through the water column to the surface.

Four specific zones are defined:

Plants must be selected which are suitable for a location, and suitability is based on actual observations of soil moisture and sun or shade conditions. Some recommended species are listed in Table 1 and Table 2. A more comprehensive and extensive native plant list begins on page 13.

Table 1. A brief list of plants found in upland, wet meadow, emergent, and submerged zones.

Trees
bur oak Quercus macrocarpa
common chokecherry Prunus virginiana
red maple Acer rubrum
red oak Quercus rubra
white oak Quercus alba
wild plum Prunus americana
Shrubs
American elderberry Sambucus canadensis
American highbush cranberry Viburnum trilobum
Prairie grasses for sun
big bluestem Andropogon gerardii
Indian grass Sorghastrum nutans
little bluestem Schizachyrium scoparium
sideoats grama Bouteloua curtipendula
Herbaceous plants for sun
anise hyssop Agastache foeniculum
bergamot Monarda fistulosa
butterfly milkweed Asclepias tuberosa
Culver's root Veronicastrum virginicum
gray-head coneflower Ratibida pinnata
prairie blazing star Liatris pycnostachya
prairie smoke Geum triflorum
purple coneflower Echinacea augustifolia
purple prairie clover Dalea purpurea
thimbleweed Anemone cylindrica
Herbaceous plants for woodland shade
Canada wild ginger Asarum canadadense
common blue violet Viola papilionacea
Jacob's ladder Polemonium reptans
mayapple Podophyllum peltatum
true Solomon's seal Polygonatum biflorum
wild geranium Geranium maculatum
Zone 2: Wet prairie soils (wet meadow)
Trees
black spruce Picea mariana
cottonwood Populus deltoides
Saskatoon Amelanchier alnifolia
red maple Acer rubrum
swamp white oak Quercus bicolor
Shrubs
buttonbush Cephalanthus occidentalis
meadowsweet Spirea alba
pussy willow Salix discolor
red osier dogwood Cornus sericea
Grass
prairie cord grass Spartina pectinata
Herbaceous plants (and others)
blue flag iris Iris versicolor
blue vervain Verbena hastata
bottlebrush sedge Carex comosa
cardinal flower Lobelia cardinalis
Culver's root Veronicastrum virginicum
great blue lobelia Lobelia siphilitica
Joe-pye weed Eupatorium maculatum
marsh marigold Caltha palustris
spike rush Eleocharis species
swamp milkweed Asclepias incarnata
Zone 3: Emergent lake margins
Herbaceous plants (and others)
arrowhead Sagittaria latifolia
bur-reed Sparganium americanum
Canada bluejoint grass Calamgrostis canadensis
cattail Typha latifolia
green bulrush Scirpus atrovirens
lake sedge Carex lacustris
pickerelweed Pontederia cordata
river bulrush Scirpus fluviatilis
soft rush Juncus effusus
water plaintain Alisma plantago-aquatica
wool grass Scirpus cyperinus
Zone 4: submerged or floating leaf (for wet soils always under water)
American lotus Nelumbo lutea
spatterdock Nuphar advena
white waterlily Nymphaea odorata
wild celery Valisneria americana

Trees and shrubs can provide shade, frame your view, and hold soils on steep slopes. Grasses, sedges and flowering perennials can be used where an unobscured view is important.

Identifying the lake boundary

You need to locate the ordinary high water level of any body of water where you seek to landscape a shoreline. This is considered to be the highest water level that the lake has maintained for enough time to leave evidence on the landscape.

The high water level is considered to be the legal boundary of the lake bed. It is often the highest point reached by emergent plant species such as sedges, rushes, and cattails. The Minnesota Department of Natural Resources has jurisdiction over all areas below that ordinary high water level. A permit from the DNR is required to remove or add any plants in this area. Plantings above the ordinary high water level are subject to local ordinances, if any exist.

Using a buffer strip of vegetation

Buffer strips are natural unmowed areas between the water's edge and a lawn or hard surface such as a driveway or patio. Runoff will pass through the buffer strip to reach the water, but its speed will be reduced and much of the sediment it carries will be captured by the buffer strip.

A buffer strip should be at least 30 feet deep, reaching up the slope from the water's edge and extending as far as possible along the shoreline. For example, if you have 100 feet of shoreline, you should reserve 25 feet or less of shoreline for lake access, and convert the remainder to buffer. Wider buffer strips will be even more beneficial. Even simply leaving a strip unmowed will allow the growth of taller and denser plants which will slow down runoff and intercept sediment.

buffer-strip-2

The use of native plants will make buffer strips more attractive and increase the area's biodiversity. The most effective buffer strips consist of vegetation with dense root systems and many erect stems which persist through fall and spring rains. Multiple layers of trees and shrubs are most effective against soil erosion on steep slopes.

Buffer strips along lake margins have also been demonstrated to reduce access by geese to lawns. The University of Minnesota's Department of Fisheries, Wildlife and Conservation Biology website has more information on this subject.

goldenrod
Solidago species
goldenrod prairie
new-england-aster-prairie
Aster Novae-anglia
New England aster prairie
coneflower
Ratabida pinnata
gray-headed coneflower prairie
culvers
Veronicastrum virginicum
Culver's root prairie
blazing-star
Liatris species
blazing star prairie
wild-bergamot
Monarda fistulosa
wild bergamot prairie
big-bluestem
Andropogon gerardii
big bluestem prairie
ironweed
Verononia fasciculata
ironweed prairie
bur-reed
Sparganium americanum
bur-reed emergent
warter-plaintain
Alisma plantago-aquatica
warter plaintain emergent
arrowhead
Sagitaria latifolia
arrowhead emergent
cattail
Typha latifolia
cattail emergent
waterlily
Nymphae odorata
white waterlily submergent
floating-leaf
Valisneria american
wild celery
submergent/floating leaf
floating-leaf
Nelumbo lutea
American lotus (protected species)
submergent/floating leaf

Implementing a landscape plan

Obtaining plants and seeds

As native plant landscaping increases in popularity, more nurseries are propagating and selling native plants locally and by mail. It is best to buy plants that are propagated from plants native to Minnesota since they are better adapted to our region. Although it may be tempting, do not remove plants from the wild unless you have a permit.

Native plants
In the Twin Cities area, native vegetation included oak savanna on the uplands with wet prairie grading into wetlands in the valleys. The native plants supported animals and people. Many plants were used in historic times as foods, medicines, dye plants, building materials and craft materials. We can preserve our native plants by using them in landscapes in large scale revegetation projects.

Plants can be raised from seed. Seeds may be purchased from suppliers, or collected on private property with the landowner's permission, as long as this can be done without harming wild populations. Seeds from endangered, threatened, or special-concern species must not be collected, and these species are not included on the plant lists in this publication.

Most seeds of native plants require a cold treatment before they will germinate. You will likely need to mix the seeds with damp sand and refrigerate them for two months. Alternatively, seeds can be planted in pots in the fall, covered with mulch, and left outdoors for the entire winter in a protected, shaded spot, or in an unheated garage. Uncover the pots in the spring and keep them watered.

Planting prairie, woodland and wet meadow

Remove existing vegetation before planting to increase success. Roots of existing plants can otherwise compete with tender young roots of newly planted vegetation.

Sod and weeds can be removed by hand, by rototilling, or by covering them with plywood and/or black plastic sheets for two months or more. In areas that are rototilled, care must be taken to prevent erosion and reduce runoff. Alternatively, herbicides can be used, but care must be taken to prevent herbicides from entering the water. If herbicides have been used, wait two weeks before planting.

Areas which are overgrown with reed canary grass or purple loosestrife are particularly difficult to plant due to the intense competition from these weeds. These plants may be removed mechanically or with the use of herbicides.

It is best to plant on a drizzly or overcast day. You can improve the success of your planting by:

For spacing, one plant per square foot is recommended, but denser plantings will cover the ground faster, especially on slopes. Most plants grow slowly at first as they develop roots, so small transplants yield more rapid results than direct seeding. Three years may be needed for some plants to mature.

Direct seeding of prairie and wet meadow plants may be used to cover large areas. Spring and fall are the best times for seeding in Minnesota. You can broadcast seed by hand or use a spreader on prepared soil. Ensure good seed-to-soil contact by lightly raking the seed in, then rolling with a lawn roller. Cover the seeded area with a light mulch of weed-free straw.

Planting the emergent and submerged zone

All aquatic areas of lakes and areas below the ordinary high water level are regulated by the Minnesota Department of Natural Resources. A permit is required to plant or remove vegetation, to use herbicides, and to install wavebreak structures.

Permits
To plant or remove aquatic vegetation, contact the Minnesota Department of Natural Resources office nearest you, or the Ecological DNR, 500 Lafayette Road, St. Paul, MN 55155, or call 651-296-2835 (in the Minneapolis-Saint Paul metropolitan area) or 1-888-646-6367. You can also visit their homepage for more information.

Even with a permit, you need to be aware that revegetation in the emergent and submerged zones is not as well researched as are prairie plantings. Extra care must be taken to prevent sediment from entering water by placing straw bales or filter fences between the planting area and water.

Undesired vegetation in the emergent zone can be removed by hand or by heavy mulching with plywood or black plastic left in place for two months before planting. Wetland soils should not be tilled. Herbicide use is not recommended and requires DNR approval.

Areas with heavy wave action, whether natural or due to boat traffic, may require wavebreaks such as brush bundles, coconut fiber logs, or plywood held in place with a PVC frame for a period of time so that plants will not be washed away before they take root. Plants can be planted directly into coconut fiber logs or biodegradable erosion mats, and a list of possible suppliers is provided on page 18 of this publication.

Remember that different bottom sediments influence wave action. Area with sandy bottoms often have higher wave action, which could be reduced if aquatic plants colonize the area.

In the emergent and submerged zones, using plants, rhizomes (underground stems with buds) or tubers, rather than seeds, is recommended. Seeds of most emergent plants will not germinate under water, so unless the water level can be controlled, you must wait for a dry period to plant them.

Plants for emergent and submerged zones should also be planted as soon as possible after you receive them, and should be kept cool and moist until they are planted. Emergent plants must have some of their leaves above the water in order to start growth, although they may spread into deeper waters later. Do not clip or prune them. Tubers of arrowhead, bulrushes, and waterlillies need to be planted by pushing the tubers firmly into the mud or sand.

Plants, tubers, and rootstocks may be held in place by staking them down, tying them to bricks using cotton string, or placing them in cheesecloth bags weighted with rocks. Some suppliers sell tubers, rhizomes, or plants with weights attached. These can be dropped directly into the water in areas protected from wave action. As roots develop, plants will be held in place naturally.

Maintaining the sustainable landscape

Long-term sustainable

Watering may be necessary during the first season of a new planting, even in areas close to a lake. In general, native plants will gradually out-compete any weeds present, but it is best to remove as many weeds as possible by hand before they develop deep roots.

Once established, prairie restorations may be mowed or burned in fall or spring to prevent invasion of trees and exotic grasses, but burning requires a permit and you must check both local ordinances and with the Minnesota Department of Natural Resources. Do not burn for the first three years after planting. Once the restoration is well established, burning every three years will maintain it. In urban areas where burning is prohibited, mowing in early spring can partly mimic fire conditions.

Components of sustainable management

There are four primary components to sustainable management: placing plants in their correct micro-habitats, using low input lawn care, composting, and applying integrated pest management practices.

Use plants suitable to the microhabitat - Every site contains different microhabitats due to light and moisture differences. The use of perennial plants, especially natives, which are adapted to each micro-habitat, reduces the need for fertilizers, herbicides, and pesticides. Replanting is typically not necessary since these plants persist for many years.

Low input lawn care - Limit lawn fertilization to low-phosphorus fertilizer applications in August and September. Water the fertilizer lightly into the soil or vegetation. Do not allow fertilizer to enter the water as it will increase the growth of algae and aquatic plants.

Longer grass survives better in the shade and during hot dry weather. Weeds are slower to invade longer grass, so mow to a height of 3 1/2 inches. If grass is tall, only take about one-third off the height at a time until the 3 1/2-inch maintenance level is reached. Leave grass clippings on the lawn, but keep them out of the water.

Remove weeds by hand rather than applying herbicide. In the shade, instead of grass use shade-tolerant species of ground cover.

Composting - Compost yard wastes and add the compost to gardens to improve soil structure, hold moisture, and provide a low level of nutrients. Purchased mulch retains water, but does not provide the same soil structure benefits as compost. Leave twigs, leaves and other litter on the ground under trees, but not on lawns. Stems and branches will slow the rate of runoff during spring snowmelt.

Integrated Pest Management (IPM) - When pest problems develop, control is best accomplished by Integrated Pest Management. IPM is a decision-based management system based on timing pesticide applications when insect pests are in earlier stages and most vulnerable. Biorational pesticides such as soaps, horticultural oils, Bacillus thuringiensis (Bt) bacteria, and Beauveria fungus are favored over conventional pesticides. These biorationals conserve beneficial insects such as predators and parasitoids.

Conventional pesticides should be used on a limited basis only when necessary, to avoid killing beneficial insects. Beneficial insects are predators, parasitoids, bees, and butterflies. Predators and parasitoids reduce pest insects. Bees and butterflies pollinate plants and add beauty to the landscape. Table 3 shows some examples of beneficial insects that utilize native plants.

Table 3. Some examples of common beneficial insects: predators, papsitoids and pollinators

dragonfly Odonata: adult dragonfly, predator nymph-dragonfly Odonata: aquatic nymph dragonfly, predator
ground-beetle Coleoptera: ground beetle, predator (eating a caterpillar) lacewing Neuroptera: larval lacewing, predator
wasp Hymenoptera: adult parastic wasp, parasitoid wasp Hymenoptera: adult parasitic wasp, parasitoid (laying egg in an aphid)
butterfly Lepidoptera: swallowtail butterfly, pollinator moth Lepidoptera: a spinx moth, pollinator (on a Michigan lily)

Appreciating the sustainable landscape

Over the long term, less maintenance will be required as a sustainable landscape of native plants continues to develop. You can chronicle the growth and evolution of your landscape, and the progress of plant and animal populations, by taking photos and recording observations of the site after planting, and then regularly for several years. Some plant species will thrive and others will prove unsuited to the site and vanish. Birds and insects will arrive and leave as the seasons change.

Always be aware of changes that may cause erosion and be ready to prevent them. Sustainable landscaping with native plants will enhance your enjoyment of your property and increase its value for years to come.

Native plant list

PDF

Sources of native seeds and plants

[prairie plants]
Booming Native Plants, 2323 County Road 6, Barnum MN 55707-8748

[trees]
Itasca Greenhouse Inc., P.O. Box 273, Cohasset MN 55721; 800-538-8733

[aquatics and emergents] J and J Tranzplant Aquatic Nursery, P.O. Box 227, Wild Rose WI 54984-0227; 715-256-0059

[prairie and woodland perennials and grasses]
Landscape Alternatives Inc., 25316 St. Croix Tr., Shafer, MN 55074; 651-257-4460

[wildflowers, sedges, grasses, and rushes]
Morning Sky Greenery, 44804 East Highway 28, Morris, NN 56267; 320-795-6234, natives@info-link.net, www.morningskygreenery.com

[trees]
Out Back Nursery Inc., 15280 110th Street South, Hastings MN 55033; 651-438-3816

[prairie and woodland perennials and trees]
Prairie Moon Nursery, Route 3, Box 163, Winona MN 55987; 507-452-1362, fax 507-454-5238 www.prairiemoonnursery.com

[prairie perennials and grasses]
Prairie Restorations Inc., P.O. Box 327, Princeton MN 55371; 612-389-5733 www.prairieresto.com

[prairie, woodland and wetland perennials]
Prairie Ridge Nursery, 9738 Overland Road, Mount Horeb WI 53574-2832; 608-437-5245

[prairie grasses and perennials]
Wildlife Habitat, Route 3, Box 178, Owatonna MN 55060; 507-451-6771

[aquatic and emergents]
Wildlife Nurseries Inc., P.O. Box 2724, Oshkosh WI 54903; 920-231-3780

Suppliers of erosion control materials

AGT Specialty Nets and Profiles, 96 Swampscott Road, Salem MA 01970; 800-331-8441

A H Harris & Sons, Inc., 321 Ellis Street, New Britain CT 06051; 860-223-3772

American Excelsior Co., P.O. Box 5067, Arlington TX 76011; 817-640-1555 www.amerexcel.com/

Bestmann Green Systems, Inc., 53 Mason Street, Salem MA 01970; 508-741-1166

Bon Terra America, 355 W. Chestnut Street, Genesse ID 83832-9570; 800-882-9489 www.fixsoil.com

New England Geotextiles Co. Inc., No. 9 Palfry Street, Worcester MA 01604; 508-756-3734

Information resources

More information on many topics covered in this publication can be found in several videos, many books and articles, and from a variety of public and nonprofit agencies.

Videos

Sustainability in Urban Ecosystems. Krischik, V. 1995. VH-6639-GO, University of Minnesota Extension Service, St. Paul, Minnesota.

Keeping Our Shores: Shoreland Best Management Practices. Minnesota Arrowhead Water Quality Team. 1996. VH-6947-GO, University of Minnesota Extension Service, St. Paul, Minnesota.

The Living Shore, Best Management Practices for Shoreland Vegetation. Minnesota Arrowhead Water Quality Team. 1998. VH-7129-GO, University of Minnesota Extension Service, St. Paul, Minnesota.

Standing Firm Against Erosion, Best Management Practices for Shoreland Stabilization. Minnesota Arrowhead Water Quality Team. 1998. VH-7130-GO, University of Minnesota Extension Service, St. Paul, Minnesota.

Publications

Brown, D.L. 1995. Gardening in the Shade, FS-1428-A, University of Minnesota Extension Service, St. Paul, Minnesota.

Burrell, C.C. 1997. A Gardener's Encyclopedia of Wild Flowers. Rodale Press, Inc., Emmaus, Pennsylvania. 192 pp.

Dindorf, C.J. 1993. Aquascaping: A Guide to Shoreline Landscaping. Hennepin Conservation District, Minnetonka, Minnesota. 28 pp.

Eggers, S.D. and D.M. Reed.1997. Wetland Plants and Plant Communities of Minnesota and Wisconsin. U.S. Army Corps of Engineers, St. Paul, Minnesota. 264 pp.

Fink, D.A. 1997. A Guide to Aquatic Plants: Identification and Management. Minnesota Department of Natural Resources, St. Paul, Minnesota. 52 pp. (Includes information on permits.)

Galatowitsch, S. 1999. Shoreland Landscaping Series, PC-7357-GO, University of Minnesota Extension Service, St. Paul, Minnesota.

Haapoja, M. 1998. Aquascaping. The Minnesota Volunteer, March-April 1998, pp. 28-39. Minnesota Department of Natural Resources, St. Paul, Minnesota.

Henderson, C.L. 1987. Landscaping for Wildlife. Minnesota Department of Natural Resources, St. Paul, Minnesota. 144 pp.

Henderson, C.L., Dindorf, C.J., and F.J. Rozumalski. 1998. Lakescaping for Wildlife and Water Quality, Minnesota Department of Natural Resources, Section of Wildlife, Nongame Wildlife Program, St. Paul, Minnesota. 175 pp.

Hockenberry, M., D.B. White, and H. Pellett. 1995. Ornamental Grasses for Minnesota, FS-6422-A, University of Minnesota College of Agriculture.

Krischik, V.A. 1996. Butterfly Gardening, University of Minnesota Extension Service, St. Paul, Minnesota. 21 pp.

Krischik, V.A., and K.J. Bevacqua. 1996. Sustainability in Urban Ecosystems, FO-6709-D, University of Minnesota Extension Service, St. Paul, Minnesota. 8 pp.

Krischik, V.A., K.J. Bevacqua and A.M. Hanchek. 1997. Selecting Hardy Roses for Northern Climates, FO-6750-C, University of Minnesota Extension Service, St. Paul, Minnesota. 8 pp.

Kyhl, J.F., M.H. Meyer and V.A. Krischik. 1997. Establishing and Maintaining a Prairie Garden, FO-6748-C, University of Minnesota Extension Service, St. Paul, Minnesota. 7 pp.

Loos, A., and D. Ragsdale. 1998. Biological Control of Purple Loosestrife: A Guide for Rearing Leaf-feeding Beetles, FO-7080-D, University of Minnesota Extension Service, St. Paul, Minnesota. 12 pp.

Meyer, M., and P. Olin. 1998. Common Questions About Wildflowers and Native Plants, University of Minnesota Extension Service, St. Paul, Minnesota. 2 pp.

Mugaas, R., V. Krischik and B. Jarvis. 1996. Low Input Lawn Care, EP-6726-GO, University of Minnesota Extension Service, St. Paul, Minnesota.

Niering, W.A. 1985. Wetlands.Audubon Society Nature Guides. Knopf. New York, New York. 638 pp.

Robison, R., D.B. White and M.H. Meyer. 1995. Plants in Prairie Communities, AG-FO-3238-C, University of Minnesota Extension Service, St. Paul, Minnesota. 18 pp.

Roth, Sally. 1997. Natural Landscaping: Gardening with Nature to Create a Backyard Paradise. Rodale Press, Inc., Emmaus, Pennsylvania. 256 pp.

Runkel, S.T., and A.F. Bull. 1979. Wildflowers of Iowa Woodlands. Wallace Homestead Book Co., Des Moines, Iowa. 257 pp.

Runkel, S.T., and D.M. Roosa. 1989. Wildflowers of the Tallgrass Prairie. Iowa State University Press, Ames, Iowa. 279 pp.

Shoreland Best Management Practices Fact Sheets Numbers 1-18. University of Minnesota Extension Service, Duluth, Minnesota.

Shorelandscaping: A Guide for Waterfront Property Owners. UWEX-Lakes Partnership, College of Natural Resources, University of Wisconsin Extension Service, UW-Stevens Point, Wisconsin.

Snyder, L.C. 1991. Native Plants for Northern Gardens. University of Minnesota, St. Paul, Minnesota. 277 pp.

Stroom, K., J. Fetzer, and V.A. Krischik. 1997. Insect Pests of Roses, FO-6953-D, University of Minnesota Extension Service, St. Paul, Minnesota.

Organizations and web sites

Butterflies of North America
Northern Prairie Wildlife Research Center, 8711 37th Street Southeast, Jamestown ND 58401; 701-253-5500 www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/bflyusa.htm

Cornell University
Biological Control: A guide to natural enemies in North America www.nysaes.cornell.edu/ent/biocontrol/

Minnesota Department of Natural Resources
DNR Information Center, 500 Lafayette Road, St. Paul MN 55155-4040; 651-296-6157 or 888-646-6367 e-mail: info@dnr.state.mn.us

Sustainable Shoreland Ecosystems
www.dnr.state.mn.us/waters/shoreland

Minnesota Native Plant Society
220 Biological Sciences Center, University of Minnesota, 1445 Gortner Avenue, St. Paul MN 55108 www.stolaf.edu/depts/biology/mnps/

Minnesota State Horticultural Society
1755 Prior Avenue North, Falcon Heights MN 55113-5549; 612-643-3601 www.northerngardener.org/

The information in this publication was developed by CUES (Center for Urban Ecology and Sustainability, University of Minnesota). CUES is a multidisciplinary program supporting sustainable management and sustainable landscapes.

The extension and research program that supported development of this publication was funded by a grant from the Metropolitan Council of the Twin Cities Area. Cooperators in the project are the Gervais Lake Association, the Ramsey-Washington Metro Watershed District, the Department of Entomology at the University of Minnesota, the University of Minnesota Extension Service, and the Minnesota Department of Natural Resources.

Copyright © 2013 Regents of the University of Minnesota. All rights reserved.
BU-07447 2000

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