University of Illinois Extension

Ornamentals

Herbaceous Ornamentals

Design Considerations

Gardening Organization WWW Sites Gardening Organization WWW Sites

The Purdue University site feature a listing of plant societies.

Ground Covers Rock Garden Plants and Ornamental Grasses Ground Covers Rock Garden Plants and Ornamental Grasses

An online version of the Kansas State University Extension publication on groundcovers, rock gardens and ornamental grasses.

Growing Annual Flowers

All-American Selections All-American Selections

All-America Selections program and winners.

Gardening with Annuals Gardening with Annuals

Information on some of the basic annual flowers at the University of Illinois Urban Extension web site on annuals.

Tips for Great Looking Container Gardens Tips for Great Looking Container Gardens

Tips on growing flowers in containers from the University of Illinois Urban Extension web site on container gardening.

Growing Perennial Flowers

Gardening with Perennials Gardening with Perennials

Information on some of the basic perennial flowers from the University of Illinois Urban Extension web site on perennials.

Wildflower Center Wildflower Center

Visist the Lady Bird Johnson Wildflower Center for regional native plant information and order 'Fact Packs" which include lists of species and seed sources.

Wildflowers in the Home Landscape Wildflowers in the Home Landscape

Information on growing wildflowers from the University of Missouri guide sheet on the topic.

Woody Ornamentals

Selection of Woody Plants

Illinois Tree Selection Illinois Tree Selection

For a key to selecting trees for the landscape, visit the U of I Urban Extension website via the link above.

Urban Trees and Shrubs Urban Trees and Shrubs

For specific information on urban trees and shrubs, visit the site above.

USDA Natural Resources Conservation Service USDA Natural Resources Conservation Service

Information on conservation uses of various plants (both woody and herbaceous) from the USDA Natural Resources and Conservation Service Plant Guides and Factsheet Database.

Planting Trees

Forests of Illinois Forests of Illinois

Illinois State Museum Forest Link – For information on Illinois state forests, such as types, location, trees, native peoples.

List of Native Trees for Use Along Roadsides in Illinois. List of Native Trees for Use Along Roadsides in Illinois.

Species Lists for Planting Native Trees along side roads in Illinois – Corridors for Tomorrow Project (COTP).

Trees are Good Trees are Good

A collection of consumer tree care guides by the International Society of Arboriculture.

Ornamentals

References to Woody Ornamentals

Go to the University of Illinois U-Plant web site at http://woodyplants.nres.uiuc.edu/ and view the characteristics of the following woody plants:

Acer rubrum, Red maple 
Aesculus parviflora, Bottlebrush buckeye 
Amelanchier x grandiflora, Juneberry 
Aronia melanocarpa, Black chokeberry 
Berberis koreana, Korean barberry 
Buddleia davidii, Butterfly bush 
Calycanthus floridulus, Carolina allspice 
Carpinus caroliniana, American hornbeam, Blue beech 
Caryopteris x clandonensis, Blue-mist spirea 
Cercidyphyllum japonicum, Katsura tree 
Cornus kousa, Kousa dogwood 
Cornus mas, Cornelian cherry 
Cotinus coggygria, Purple smokebush 
Ginkgo biloba, Ginkgo 
Gymnocladus dioica, Kentucky coffeetree 
Hamemelis vernalis, Vernal witchhazel 
Hydrangea arborescens 'Annabelle', Annabelle hydrangea 
Hypericum kalmianum, Kalm St. Johnswort 
Ilex verticillata, Winterberry 
Itea virginica, Virginia sweetspire 
Koelreuteria paniculata, Goldenrain tree 
Lagerstromia indica, Crepe myrtle 
Magnolia virginiana, Sweetbay magnolia 
Mahonia aquifolium, Oregon grape holly 
Ostrya virginiana, American hop hornbeam, Ironwood 
Phellodendron amurense, Amur corktree 
Quercus rubra, Red oak 
Sophora japonica, Japanese scholar tree 
Spiraea japonica, Japanese spirea 
Spiraea x vanhouttei, Vanhoutte spirea 
Taxodium distichum, Bald cypress 
Viburnum carlesii, Carlesii viburnum 
Viburnum x rhytidophylloides 'Allegheny', Lantanaphyllum viburnum 
Viburnum trilobum, Highbush cranberry Weigela florida, Weigela

Species Lists for Native Prairie Plants for use along Road Ways (COTP), (Scientific Name A- H) http://www.inhs.uiuc.edu/~kenr/prairietable1.html

Species List for Native Prairie Plants for use along Road Ways (COTP), (Scientific Name I – Z)http://www.inhs.uiuc.edu/~kenr/prairietable2.html

Species Lists for Native Shrubs for use along Road Ways (COTP)http://www.inhs.uiuc.edu/~kenr/shrubstable.html

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