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  • Celtis laevigata (Sugarberry)

    Sugarberry has small flowers in spring.

    Also known as:

    sugarberry, sugar hackberry, southern hackberry
    Native to southern Illinois, sugarberry is closely related to a more northern species, common hackberry. Sugarberry has fewer problems with leaf galls and witches broom, which are seen regularly on common hackberry. The bark is also smoother and less warty than that of common hackberry.

    Size Range:

    • Large tree (more than 40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily),
    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • Illinois,
    • North America
  • Celtis occidentalis (Hackberry)

    Common hackberry has an unusal, warty bark.

    Also known as:

    Hackberry
    Hackberry is a Chicago-area native and a sturdy, tolerant shade tree for streets and parkways, or parks and other large areas. Its fleshy, purple-brown berries ripen in late summer and persist through winter.

    Size Range:

    • Large tree (more than 40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Cephalanthus occidentalis (Buttonbush)

    The ball-shaped flower clusters of buttonbush.

    Also known as:

    Buttonbush
    Buttonbush is great shrub for naturalizing in wet areas. The glossy green leaves and fragrant, round flower clusters during mid-summer attract butterflies. Round, persistent fruits add to winter interest. Native to Chicago area and eastern U.S.

    Size Range:

    • Large shrub (more than 8 feet),
    • Medium shrub (5-8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Cerastium tomentosum (Snow-in-summer)

    Snow in summer has white flowers and silvery foliage.

    Also known as:

    Snow-in-summer
    Snow-in-summer is a ground cover that provides both flowering and silvery foliage once the flowers have faded. It is a good ground cover for dry, sunny areas.

    Size Range:

    • Small plant (6-12 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Ceratostigma plumbaginoides (Leadwort)

    Leadwort in early fall showing its blue summer flowers and red fall color.

    Also known as:

    Leadwort, plumbago, dwarf plumbago, Chinese leadwort
    Despite its somewhat understated common name, leadwort can add some zing to the garden, with truly blue flowers and a little red leaf color in autumn.

    Size Range:

    • Small plant (6-12 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Cercidiphyllum japonicum (Katsura tree)

    Summer foliage of katsura tree.

    Also known as:

    katsura tree, katsuratree, katsura-tree, Japanese katsura
    The katsura tree, native to Japan, makes an excellent specimen or shade tree in Midwestern landscapes. Its foliage offers an array of color throughout the year. In spring, heart-shaped leaves emerge reddish-purple, changing to blue-green as they mature. In autumn the color display changes again as leaves turn clear yellow or apricot color.

    Size Range:

    • Large tree (more than 40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Cercis canadensis (Redbud)

    Spring flower buds of Eastern redbud.

    Also known as:

    Redbud, Eastern redbud, Red bud
    In April and May, many neighborhoods are brightened by the purplish-pink flowers lining the dark branches of redbuds before their leaves open. This Chicago native plant, evolved in the understory and wood edges of forests. It works especially well among evergreens that contrast with its color and shelter it from intense sunlight.

    Size Range:

    • Medium tree (25-40 feet),
    • Small tree (15-25 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Chaenomeles japonica (Japanese flowering quince)

    Flowers of Japanese flowering quince.

    Also known as:

    Japanese flowering quince, flowering quince
    Japanese flowering quince is a low-growing, spring-flowering shrub with dark green shiny leaves. Growth habit changes with cultivars often reaching 3 to 4 feet high. Bright orange-scarlet flowers appear after the leaves emerge. Most stems have thorns, so avoid planting near sidewalk and heavy traffic areas.

    Size Range:

    • Small shrub (3-5 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Chaenomeles speciosa (Common flowering quince)

    Flowers of common flowering quince, cultivar "Toyo-Nishiki'.

    Also known as:

    Common flowering quince, flowering quince
    Common flowering quince is a tall, deciduous shrub reaching 6 to 10 feet high. Shiny, dark green leaves appear before the scarlet-red flowers emerge in spring. Dense tangles of stems have spiny thorns, best used as a hedge, back of the border or in mass. Edible fruit is used to make jam and jellies.

    Size Range:

    • Large shrub (more than 8 feet),
    • Medium shrub (5-8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Chamaecyparis nootkatensis (Alaska cedar)

    Needled foliage of Alaska cedar.

    Also known as:

    Alaska cedar, Alaska-cedar, Yellow cypress, Nootka falsecypress
    Alaska cedar in an interesting medium-sized evergreen tree with gray-green to blue-green foliage that droops from widely spaced branches. Native to moist bottomlands in the Pacific Northwest, it needs consistently moist soil. This plant is also known as false cypress.

    Size Range:

    • Large tree (more than 40 feet),
    • Medium tree (25-40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • North America
  • Chamaecyparis obtusa (Hinoki-cypress)

    Foliage of Hinoki-cypress

    Also known as:

    Hinoki-cypress, Hinoki falsecypress, Japanese cypress
    Hinoki-cypress is a graceful spreading with branches that droop at the tips. The small cones and attractive red peeling bark add winter interest. There are a number of dwarf and compact cultivars available and add nice accent in the garden.

    Size Range:

    • Medium tree (25-40 feet),
    • Small tree (15-25 feet),
    • Compact tree (10-15 feet),
    • Large shrub (more than 8 feet),
    • Medium shrub (5-8 feet),
    • Small shrub (3-5 feet),
    • Low-growing shrub (under 3 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Chamaecyparis pisifera (Sawara-cypress)

    Foliage of Sawara-cypress

    Also known as:

    Sawara-cypress, Sawara Falsecypress, Japanese Falsecypress, sawara cypress
    Its pyramidal habit, loose open branching and scale-like, dark green foliage make the sawara-cypress a notable option for specimen plantings or in groups in a large landscape. Besides its remarkable foliage, this evergreen has handsome reddish-brown bark that peels off in strips and tiny, reddish-brown cones on short stalks.

    Size Range:

    • Large tree (more than 40 feet),
    • Medium tree (25-40 feet),
    • Small tree (15-25 feet),
    • Compact tree (10-15 feet),
    • Large shrub (more than 8 feet),
    • Low-growing shrub (under 3 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Chamaecyparis thyoides (Atlantic white-cedar)

    Needled foliage of Atlantic white-cedar.

    Also known as:

    Atlantic white-cedar, Swamp white-cedar, Southern white-cedar
    Atlantic white-cedar is an attractive plant, but is not commonly found in landscapes. It may be difficult to find in nurseries as well. This tree requires moist to wet sites and is very intolerant of drought.

    Size Range:

    • Large tree (more than 40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • North America
  • Chasmanthium latifolium (Northern sea-oats)

    Seed heads of Northern sea-oats.

    Also known as:

    Northern sea-oats, wild oats, wood oats, Indian wood-oats, spangle grass
    Northern sea-oats is a grass native to the southern half of Illinois. This warm season, clumping grass has interesting oat-like seed heads that rustle easily in the wind, adding movement to the garden.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Illinois,
    • North America
  • Chionanthus retusus (Chinese fringetree)

    Habit of Chinese fringetree.

    Also known as:

    Chinese fringetree
    Chinese fringetree is a beautiful multi-stemmed shrub to small tree, very similar in appearance to our native species with exfoliating, gray-brown bark. In mid-spring, erect clusters of fragrant, white flowers are quite showy. Female plants produce dark purple fruits in late summer. The dark green, leathery leaves turn a soft yellow in fall.

    Size Range:

    • Small tree (15-25 feet),
    • Compact tree (10-15 feet),
    • Large shrub (more than 8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Chionanthus virginicus (Fringe tree)

    Flowers of fringe tree

    Also known as:

    fringe tree, fringetree, old man's beard, white fringetree
    Fringe tree grows as either a wide-spreading, multi-stemmed shrub or a small tree useful in native woodland gardens, as a specimen plant in groups, borders, or near large buildings. The fringe tree's most outstanding feature is the fragrant, strap-like, white flowers that are borne in six to eight-inch long fleecy panicles in late May to early June.

    Size Range:

    • Small tree (15-25 feet),
    • Compact tree (10-15 feet),
    • Large shrub (more than 8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • North America
  • Chrysogonum virginianum (Green and gold)

    Green and gold has bright yellow flowers in spring.

    Also known as:

    Green and gold, goldenstar, golden knee
    Green and gold is a small ground cover that produces an abundance of bright yellow, star-shaped flowers in spring.

    Size Range:

    • Low-growing plant (under 6 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily),
    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • North America
  • Cladrastis kentukea (Yellowwood)

    Yellowwood in flower.

    Also known as:

    Yellowwood, American yellowwood
    Choose a yellowwood tree for excellent shade in a small- to medium-sized landscape. Note that the branches of the yellowwood are highly susceptible to ice storm damage.

    Size Range:

    • Large tree (more than 40 feet),
    • Medium tree (25-40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • North America
  • Clematis terniflora (Sweet autumn clematis)

    Close up of the flowers of sweet autumn clematis.

    Also known as:

    Sweet autumn clematis
    Sweet autumn clematis is a vine that produces an abundance of small, white flowers in late summer and early autumn. It should be used with care as it is considered invasive in some locations.Also known as Clematis maximowicziana.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Clematis texensis (Scarlet clematis)

    Flowers of scarlet clematis, cultivar 'Princess Diana'.

    Also known as:

    Scarlet clematis, Texas clematis
    Scarlet clematis is native only to Texas, but is hardy in more northern climates. The urn-shaped lowers are smaller than many types of clematis and are some shade of scarlet or pink.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • North America
  • Clematis virginiana (Virgin's bower)

    Virgin's bower has small white flowers in late summer.

    Also known as:

    Virgin's bower
    Virgin's bower is a native species of clematis that produces masses of small white flowers in late summer.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Clematis viticella (Italian Clematis)

    Betty Corning, a viticella hybrid, in flower.

    Also known as:

    Italian clematis
    Italian clematis is a species of clematis with purple or violet flowers that are shaped like hanging bells.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Clematis x jackmanii (Jackman's clematis and the Jackman group of hybrids)

    Large purple flowers of 'The President', a jackman hybrid.

    Also known as:

    Jackman's clematis
    Jackman's clematis is a very old and well known clematis with large, dark purple flowers. It is the picture that comes to mind when the word clematis is spoken. There are a number of hybrids derived from this species and they are known as the Jackman group or the Jackman hybrids. These hybrids generally have large flowers.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Clethra alnifolia (Summersweet clethra)

    Flowers of summersweet clethra.

    Also known as:

    Summersweet clethra, Summersweet, Clethra, Sweet Pepperbush
    A wide variety of butterflies and songbirds are attracted to summersweet clethra for its nectar and seeds. Native to the eastern United States, it has lustrous green leaves in the spring, spiky white or pink fragrant flowers during the summer, golden yellow leaves in the fall, and interesting, delicate dried seed capsules in winter to provide exceptional four-season interest.

    Size Range:

    • Medium shrub (5-8 feet),
    • Small shrub (3-5 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily),
    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • North America
  • Cobaea scandens (Cup-and-saucer vine (ANNUAL VINE))

    The unique flowers of cup-and-saucer vine.

    Also known as:

    Cup-and-saucer vine, missionary bells, cathedral bells
    Cup-and-saucer vine is an easy to grow annual that supplies a quantity of unique flowers from mid-summer on. The flowers do look like little teacups sitting in saucers.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Comptonia peregrina (Sweet-fern)

    Sweet-fern leaves and fruit.

    Also known as:

    Sweet-fern, Sweetfern
    Sweet-fern is a colony-forming, small shrub with wonderfully aromatic fern-like leaves. This shrub is a useful selection in the landscape for erosion control and naturalizing, due to its tolerance of adverse conditions. It is adaptable to poor, infertile soil and is also drought, salt, and heat resistant.

    Size Range:

    • Small shrub (3-5 feet),
    • Low-growing shrub (under 3 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Convallaria majalis (Lily of the valley)

    Lily of the valley in flower.

    Also known as:

    Lily-of-the-Valley, Lily of the Valley, Lady's tears
    Lily-of-the-valley is an old-fashioned, shade-loving ground cover reaching 6 to 8 inches tall. In mid-spring many bell-shaped, waxy white flowers appear on an erect stalk.

    Size Range:

    • Small plant (6-12 inches),
    • Low-growing plant (under 6 inches)

    Light Exposure:

    • Partial sun/shade (4-6 hrs light daily),
    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • Non-native
  • Cornus alba (Siberian dogwood)

    Leaves and fruit of Siberian dogwood.

    Also known as:

    Siberian dogwood, Tatarian dogwood
    Siberian dogwood may not have the showiest flowers but it adds a nice spring color to the landscape. It is prized for its dark green summer foliage, red winter stems, and bluish white fruit. Best suited moist areas along a stream or pond edge and in shrub borders.

    Size Range:

    • Large shrub (more than 8 feet),
    • Medium shrub (5-8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Non-native
  • Cornus alternifolia (Pagoda dogwood)

    Close-up of the flowers of pagoda dogwood.

    Also known as:

    Pagoda dogwood, Alternate-leaved dogwood, Alternate-leaf dogwood
    Pagoda dogwood is an excellent native plant for the four season garden. The unique horizontal branching pattern has a distinct tiered habit, often catching snow in the winter. Clusters of white flowers show up in spring, dark green foliage turns a beautiful burgundy-red in fall, and blue-black berries attract many birds.

    Size Range:

    • Small tree (15-25 feet),
    • Compact tree (10-15 feet),
    • Large shrub (more than 8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Cornus amomum (Silky dogwood)

    Habit of silky dogwood.

    Also known as:

    silky dogwood
    Silky dogwood is a large to medium-sized native shrub with creamy white spring flowers, dark green foliage, and reddish stems and burgundy fall color. A great 4-season plant for naturalizing, in mass, and in shrub borders, especially in moist sites.

    Size Range:

    • Large shrub (more than 8 feet),
    • Medium shrub (5-8 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily),
    • Partial sun/shade (4-6 hrs light daily),
    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • Illinois,
    • North America

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