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  • Chelone lyonii (Pink turtle-head)

    Pink turtle-head, cultivar 'Hot Lips'

    Also known as:

    Pink turtle-head, pink turtlehead

    Pink turtle-head is a glossy, deep green plant with uniquely-shaped pink to red flowers.  The plant blooms in late summer or early fall.  Tolerant of wet sites and some flooding, it can be used in wet spots in the garden or along the edges of streams and ponds.

    This plant has some cultivated varieties. Go to list of cultivars.

     

    Size Range:

    • Large plant (more than 24 inches),
    • Medium plant (12-24 inches)

    Light Exposure:

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

    Native Locale:

    • North America
  • Chelone obliqua (Rose turtle-head)

    Rose turtle-head in flower

    Also known as:

    Rose turtle-head, turtlehead

    Rose turtle-head is similar to pink turtle-head in that they both show unique, pink blooms at the ends of the stems in late summer or early fall.  Happiest with consistent moisture, turtle-head is best used at the edges of a pond or stream or in wet areas of a planting bed.

    Size Range:

    • Large plant (more than 24 inches),
    • Medium plant (12-24 inches)

    Light Exposure:

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

    Native Locale:

    • 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
  • Claytonia virginica (Spring Beauty)

    Also known as:

    Spring Beauty, Virginia Spring Beauty

    Delicate white to pink flowers with darker pink striped petals are balanced on thin red stems.  The green buds droop until the flowers open upright.  One of the most abundant spring wildflowers in the woods here at The Morton Arboretum, these harbingers of spring are easily identified by the flowers and the two strappy leaves on each stem.  They prefer rich, loamy soil.  Both flowers and leaves will go dormant by mid-summer.

    This species is native to the Chicago Region according to Swink and Wilhelm's Plants of the Chicago Region, with updates made according to current research.

    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:

    • Chicago area
  • 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
  • Coreopsis grandiflora (Large-flowered coreopsis)

    Cultivar 'Sunray' in flower.

    Also known as:

    Large-flowered coreopsis, tickseed,

    A bright yellow, long-blooming flower has been a mainstay in perennial beds, blooming for up to eight weeks in summer.  It has showy flowers and attractive foliage.  The flower has a ragged appearance due to the outer notches on the petals, which is how to tell large-flowered coreopsis apart from other species.

    This plant has some cultivated varieties. Go to list of cultivars.

     

    Size Range:

    • Medium plant (12-24 inches)

    Light Exposure:

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

    Native Locale:

    • North America
  • Coreopsis hybrids (Hybrid Coreopsis)

    Also known as:

    Hybrid coreopsis

    Coreopsis is a long blooming, clump forming perennial that produces large numbers of daisy-like flowers from summer into fall.  The hybrids of this plant are notable mainly for the flower colors, which often differ from the usual sunny yellow of most coreopsis.

    This plant has some cultivated varieties. Go to list of cultivars.

     

    Size Range:

    • Large plant (more than 24 inches),
    • Medium plant (12-24 inches)

    Light Exposure:

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

    Native Locale:

    • Non-native
  • Coreopsis lanceolata (Lance-leaved coreopsis)

    Also known as:

    Lance-leaved coreopsis, sand coreopsis

    Bright yellow, fringed flowers can be up to two and one-half inches across.  Blooming a bit earlier than most coreopsis, lance-leaved coreopsis will bloom continuously from May through July.  This plant is similar to large-flowered coreopsis.

    This species is native to the Chicago Region according to Swink and Wilhelm's Plants of the Chicago Region, with updates made according to current research.

    Size Range:

    • Medium plant (12-24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • North America
  • Coreopsis palmata (Prairie coreopsis)

    Prairie coreopsis in full flower

    Also known as:

    Prairie coreopsis, Finger coreopsis

    A native prairie wildflower with showy yellow flowerheads, Prairie coreopsis starts blooming in May ahead of many of the others.  Easy to cultivate, this plant may sprawl unless it is in full sun with difficult conditions.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Chicago area
  • Coreopsis tripteris (Tall coreopsis)

    The bright yellow flowers of tall coreopsis

    Also known as:

    Tall coreopsis, Tall tickseed

    This native perennial can grow to be up to eight fee tall on long, slim stems.  The wide spreading yellow petals of the flowerheads surround a dark button center.

    "This species is native to the Chicago Region according to Swink and Wilhelm's Plants of the Chicago Region, with updates made according to current research."

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Chicago area
  • Coreopsis verticillata (Whorled coreopsis)

    Whorled coreopsis, cultivar 'Zagreb'.

    Also known as:

    Whorled coreopsis, Threadleaf coreopsis, Pot-of-gold, Thread leaf coreopsis

    Whorled coreopsis produces a cloud of yellow, daisy-like flowers on top of thread-shaped leaves.  The plant will bloom for most of the summer.  If the plant is deadheaded, it may get a new flush of bloom in September.  More tolerant of dry soils than other coreopsis, if this perennial is planted in relatively loose soil, the plant will spread to form a large clump.  The clumps are bright spots in a dry perennial border or containers.

    This plant has some cultivated varieties. Go to list of cultivars.

     

     

    Size Range:

    • Large plant (more than 24 inches),
    • Medium plant (12-24 inches)

    Light Exposure:

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

    Native Locale:

    • North America
  • 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
  • Cornus canadensis (Bunchberry)

    Also known as:

    Bunchberry, dwarf cornel, creeping dogwood
    Bunchberry is native in the far northern portions of the United States, but is rare in Illinois. It is a beautiful ground cover with flowers that resemble those of flowering dogwood. Its need for acid soils may limit its use in Illinois.

    Size Range:

    • Small plant (6-12 inches)

    Light Exposure:

    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Cornus drummondii (Rough-leaved dogwood)

    Leaves and fruit of rough-leaved dogwood.

    Also known as:

    Rough-leaved dogwood, roughleaf dogwood
    Rough-leaved dogwood is a native large shrub or small tree, often mistaken for gray dogwood. Named for the rough textured leaves, it has fleshy white fruit, dark green foliage that turns burgundy red fall color. Best used for naturalizing in moist areas. May be difficult to find in nurseries.

    Size Range:

    • Small tree (15-25 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:

    • Illinois,
    • North America
  • Cornus florida (Flowering dogwood)

    Flowering dogwood in full flower.

    Also known as:

    Flowering dogwood
    Flowering dogwood is a small to medium woodland understory tree, native throughout most of the eastern United States. Showy white, red or pink flowering bracts appear before the leaves in early spring. Dark green summer foliage turns a brilliant reddish purple in fall. It is sensitive to adverse soil and environmental conditions such as road salt and pollution.

    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),
    • Full shade (4 hrs or less of light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Cornus kousa (Kousa dogwood)

    Flowers of kousa dogwood.

    Also known as:

    Kousa dogwood
    Kousa dogwood is an excellent small specimen tree. Two outstanding characteristics are the four-petaled, white flowers that appear above the foliage in June and reddish-purple fall color. In the Midwest, this is a hardier substitute for the acid-loving flowering dogwood. The shallow root system will benefit from a layer of mulch to maintain a cool root environment.

    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:

    • Non-native
  • Cornus mas (Cornelian-cherry dogwood)

    Flowers of Cornelian-cherry dogwood.

    Also known as:

    cornelian-cherry dogwood, corneliancherry dogwood
    Cornelian-cherry dogwood is a small, 20- to 25-foot-high tree or large shrub that thrives in well-drained urban conditions as a specimen plant, in masses, near a patio, or as a hedge. The tree is native to Europe and Asia.

    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

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