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  • Shrub rose hybrids (Rosa hybrids)

    Double Knockout rose in flower.

    Also known as:

    Hybrid shrub rose, Knock out rose, Carefree rose
    Shrub roses are one of the most reliable and popular roses available. They are long blooming, come in many colors, low maintenance and feature good resistance to disease. The Knockout® series and the Carefree™ series withstand hot, humid summers and cold winters of the Midwest.

    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
  • Shrubby cinquefoil (Potentilla fruticosa)

    Flowers of shrubby cinquefoil.

    Also known as:

    Shrubby cinquefoil, bush cinquefoil, potentilla
    Shrubby cinquefoil is a dense, bushy shrub with upright, slender branches. The species produces bright yellow flowers throughout the the growing season. Cultivars come in a wide range of flower colors. An excellent choice for hot, dry sites.

    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
  • Shrubby St. John's wort (Hypericum prolificum)

    Shrubby St. John's wort beginning to flower.

    Also known as:

    Shrubby St. John's wort
    Shrubby St. John's wort is a low to medium-sized native shrub reaching 3 to 4 feet high. The bright yellow flowers with a profusion of yellow stamens look like fireworks. The exfoliating bark and attractive seed capsules add winter interest to the landscape.

    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:

    • Chicago area,
    • Illinois,
    • North America
  • Shumard's oak (Quercus shumardii)

    Summer foliage of Shumard's oak.

    Also known as:

    Shumard's oak, swamp red oak
    Shumard's oak is native to southern Illinois, but is hardy in the northern part of the state as well. This species can be utilized as a street tree, but may be difficult to find in nurseries.

    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:

    • Illinois,
    • North America
  • Siberian dogwood (Cornus alba)

    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
  • Siberian elm (Not receommended) (Ulmus pumila)

    A mature specimen of Siberian elm.

    Also known as:

    Siberian elm, Chinese elm, littleleaf elm
    Siberian elms have invasive traits that enable them to spread aggressively. While these trees have demonstrated invasive traits, there is insufficient supporting research to declare them so pervasive that they cannot be recommended for any planting sites. Review of risks should be undertaken before selecting these trees for planting sites.

    Size Range:

    • Large tree (more than 40 feet)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Siberian frost grass (Spodiopogon sibiricus)

    Also known as:

    Siberian frost grass, frost grass, Siberian graybeard, silver spikegrass
    Siberian frost grass is a warm-season, clump-forming grass with a neat, upright to rounded form. It grows up to four feet tall and has erect flower clusters in mid- to 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:

    • Non-native
  • Siberian pea-shrub (Caragana arborescens (fruticosa))

    Fruit of Siberian pea-shrub.

    Also known as:

    Siberian pea-shrub; Siberian peashrub
    Siberian pea-shrub is a hardy, sun-loving, large shrub tolerant of drought, wind, deer and varying soil conditions. Prized for its light green, ferny-like foliage and bright yellow spring flowers.

    Size Range:

    • 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
  • Siberian-cypress (Microbiota decussata)

    Siberian-cypress used as a ground cover.

    Also known as:

    Siberian-cypress, Russian-arborvitae, Siberian cypress, Russian arborvitae
    Siberian-cypress is a low spreading, soft-textured evergreen shrub or ground cover. The fan-like, feathery branchlets appear on drooping branches. In late fall the medium green leaves turn a burgundy to bronze color adding interest to the winter landscape. Can be used as a single specimen, planted in mass, or to help stabilize a slope.

    Size Range:

    • 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:

    • Non-native
  • Side oats grama (Bouteloua curtipendula)

    Side-oats grama going to seed.

    Also known as:

    Side oats grama, mesquite grass, tall grama grass
    Side oats grama was a common grass in both the tallgrass and shortgrass prairies even though it is a shorter grass (about 2 to 2 1/2 feet). It is most often found in drier areas away from the shade of the taller grasses. It is a warm season grass and considered a clumping grass, even though it does send out short rhizomes.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Siebold viburnum (Viburnum sieboldii)

    White flower clusters of Siebold viburnum

    Also known as:

    Siebold viburnum
    This large shrub or small tree has glossy dark green leaves with toothed edges. In May creamy-white flowers are followed by clusters of red berries. The shiny dark green leaves turn burgundy 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
  • Siebold's shrub-ginseng (Eleutherococcus sieboldianus (Syn. Acanthopanax sieboliana))

    Also known as:

    Siebold's shrub-ginseng, Siebold shrub ginseng, fiveleaf aralia
    Siebold's shrub-ginseng, also known as five-leaved aralia, is an upright, deciduous shrub reaching 8 to 10 feet high and wide. Medium green, palmately compound leaves hold late into fall. Stout gray arching stems have thorns making it a good barrier shrub.

    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
  • Silky dogwood (Cornus amomum)

    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
  • Silver banner grass (Miscanthus sacchariflorus )

    Also known as:

    Silver banner grasss, Amur silver grass, Japanese silver grass, Chinese silver grass
    Silver banner grass (Miscanthus sacchariflorus) is similar in appearance to the miscanthus often used in gardens (Miscanthus sinensis), but is far more aggressive. It is a spreading plant that can colonize and quickly overtake a yard. Review of risks should be undertaken before selecting this grass.

    Size Range:

    • Large plant (more than 24 inches)

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Silver lace vine (Fallopia aubertii (syn. Polygonum aubertii))

    Silver lace vine growing on a chain link fence.

    Also known as:

    Silver lace vine, silver fleece vine
    Silver lace vine is a beautiful flowering vine, but it is an aggressive grower and is becoming an invasive plant in some areas. Review of risks should be undertaken before selecting this vine for planting sites.

    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
  • Silver linden (Tilia tomentosa)

    Summer foliage of silver linden.

    Also known as:

    silver linden
    Silver linden has leaves that are dark green above and silvery-white below. It can be used as a street tree.

    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
  • Silver maple (Acer saccharinum)

    A mature specimen of silver maple.

    Also known as:

    silver maple, swamp maple, water maple, silverleaf maple, white maple, soft maple
    Silver maple is a tall, fast-growing, native tree of eastern North America. It is usually found growing in open sunlight along creeks and waterways. This species has become over planted. Without proper and frequent pruning high winds and ice can cause limbs to break. Many authorities recommend against planting silver maple.

    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
  • Silver-leaved Hydrangea (Hydrangea radiata)

    Silver-leaved hydrangea, cultivar 'Samantha'.

    Also known as:

    Silver-leaved hydrangea
    Silver-leaved hydrangea is an attractive shrub native to Appalachia. It has lacecap clusters of flowers in early summer that emerge green and change to white. Its distinctive characteristic is the silvery underside of its leaves. Silver-leaved hydrangea is somewhat sensitive to drought, so it needs a site with moist soil. May be difficult to find in nurseries.

    Size Range:

    • Medium shrub (5-8 feet)

    Light Exposure:

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

    Native Locale:

    • North America
  • Silverbell (Halesia carolina)

    Bell-shaped flowers of silverbell.

    Also known as:

    silverbell, Carolina silverbell, small-flowered silverbell
    Silverbell is a medium-sized tree that produces white bell-shaped flowers in spring. The flowers are followed by dry fruits with four wings. This tree may be difficult to find in nurseries.

    Size Range:

    • Medium tree (25-40 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
  • Single-seeded hawthorn (Crataegus monogyna)

    Also known as:

    single-seeded hawthorn, oneseed hawthorn, common hawthorn
    Single-seeded hawthorn, like other hawthorns, bears white flowers in spring, followed by red fruits. Unlike other hawthorns, the flowers are sweetly scented (most hawthorn flowers have an "off" odor).

    Size Range:

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

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

    • Non-native
  • Sitka spruce (Picea sitchensis)

    Also known as:

    Sitka spruce
    The Sitka spruce is one of North America's largest conifers, able to reach mature heights of 200 feet or more. This species is found primarily along the western coast of North America and requires the high moisture and high humidity found in that environment. While this is a majestic tree it is not recommended for Midwestern landscapes.

    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:

    • North America
  • Slender deutzia (Deutzia gracilis)

    Flower buds of slender deutzia.

    Also known as:

    Slender deutzia
    Slender arching stems covered in clusters of white flowers grace this shrub in late spring. Use in front of border, edging a walkway, or in groups. A yearly pruning is needed to keep deutzia looking tidy.

    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
  • Slippery elm (Not recommended) (Ulmus rubra)

    A mature specimen fo slippery elm.

    Also known as:

    slippery elm
    Due to susceptibility to Dutch elm disease (DED), slippery elm is not recommended for planting anywhere in this region and usually require removal and/or replacement.

    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
  • Smooth sumac (Rhus glabra)

    Smooth sumac in flower.

    Also known as:

    Smooth Sumac
    Smooth sumac is a native plant found throughout the eastern United States. A good choice for difficult sites, mass plantings, screening and highways plantings. The dark green summer foliage turns an excellent yellow to orange-red-purple combinations in fall. Female plants produce scarlet, hairy terminal fruits in summer and persistent into winter.

    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)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Smooth wild rose (Rosa blanda)

    Leaves and flower of smooth wild rose.

    Also known as:

    Smooth wild rose, meadow rose, early wild rose, Labrador rose
    A native wild rose with single, 2- to 3-inch wide, pink flowers with showy yellow centers. Flowers are fragrant. Green to reddish stems lack prickly thorns and add winter interest to the landscape. Bright red fruit hips ripen in fall and remain persistent throughout winter.

    Size Range:

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

    Light Exposure:

    • Full sun (6 hrs direct light daily)

    Native Locale:

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

    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
  • Snowberry (Symphoricarpos albus )

    Fruit of snowberry.

    Also known as:

    Snowberry, Common snowberry
    Snowberry is a native shrub commonly used en masse or in naturalized landscapes. Thin, cascading branches produce small, pink flowers that appear in spikes in early summer, followed by clusters of white berries in autumn.

    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)

    Native Locale:

    • Chicago area,
    • Illinois,
    • North America
  • Snowdrop anemone (Anemone sylvestris)

    Snowdrop anemone has fragrant white flowers.

    Also known as:

    Snowdrop anemone, windflower
    Snowdrop anemone is a spring-blooming, spreading perennial with slightly nodding, white flowers that rise above dark green maple-like foliage. Excellent for a woodland garden.

    Size Range:

    • Medium plant (12-24 inches),
    • 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
  • Sourwood (Oxydendrum arboreum)

    Sourwood in full flower.

    Also known as:

    Sourwood, Sorrel tree, Lily-of-the-valley tree
    Sourwood is an attractive tree with white flowers in early summer and excellent fall color. This tree requires an acid soil and thus can be difficult to grow in northern Illinois.

    Size Range:

    • Medium tree (25-40 feet)

    Light Exposure:

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

    Native Locale:

    • North America
  • Southern arrowwood (Viburnum dentatum)

    Creamy white flower cluster of arrowwood viburnum

    Also known as:

    Southern arrowwood, arrowwood viburnum, downy arrowwood
    Southern arrowwood, also known as Arrowwood viburnum, is valued for its durability and utility in the landscape. Southern arrowwood's ornamental features include white, flat-topped flowers in late spring, ink-blue fruits in September, and wine-red fall color. The native shrub makes a great screen, informal hedge, and is useful in groupings and masses, or as filler in the border.

    Size Range:

    • Large shrub (more than 8 feet),
    • 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)

    Native Locale:

    • Illinois,
    • North America

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