The Long Island Gold Medal Plant Program

Growing a greener Long Island since 1999

Background

The Long Island Gold Medal Plant Program began in 1999 and is administered by the Nursery & Landscape Program.  The purpose of the Gold Medal Program is to identify underutilized plant material of exceptional merit that is particularly suited for growing on Long Island.  Increased public education and awareness of sustainable plant selections are the main goals of the program.

Four award-winning plants are selected each year, which may be trees, shrubs, perennials, vines, groundcovers, or grasses.  Gold Medal Plant Winners are identified by the Plant Selection Committee, which is a volunteer group of horticulture professionals.  See below for descriptions of all the award-winning, Gold Medal plants.

 

Gold Medal Plant Entries

We would like to hear your suggestions for Gold Medal Plant winners!  If you would like to nominate a plant for an award, please fill out the PLANT ENTRY FORM

 

Gold Medal Fact Sheet Series

1 page fact sheets on award-winning plants are available for download here:

 

Long Island Gold Medal Plants by Year

2000

Low-Maintenance, Small Shrub

Corylopsis pauciflora (Buttercup Winterhazel) is an attractive delicate-looking, deciduous shrub with soft yellow April flowers. Attractive dark green foliage turns yellow in October. Grow in part shade in moist, acid soil. Plants spread slowly by easily controlled suckers to 6' wide and reach 4' in height. Wonderful for use in woodland situations and mixed with other ericaceous plants. Little maintenance needed for this pest free and attractive shrub. Hardy in zones 6-8.

Fragrant, Native Shrub

Fothergilla gardenii (Dwarf Fothergilla) is native to the southeastern United States. It grows in sunny, wet habitats and attains a height of two to three feet, which can easily be accommodated in small gardens. In late April to early May, it produces beautiful white, fragrant bottlebrush inflorescence. It will survive in the shade although a plant that receives at least a half-day of sun will produce more flowers and will grow in a rounder, more compact habit. The outstanding fall color is a brilliant yellow to orange or scarlet. This relatively pest and disease free plant should be utilized in a woodland situation, a mixed border, in a mass planting or as a part of a foundation planting. Plant in moist, well-drained sites. Hardy in zones 5-8.

Attractive, Evergreen Ground Cover

Microbiota decussata (Russian Arborvitae) is an evergreen ground cover that makes a unique replacement for junipers. The pleasing green color changes in fall to bronzy-purple. It will perform nicely in moist, well-drained soils or dry conditions, in part shade to full sun locations. The prostrate growth will attain a height of about 12-16" and will grow horizontally (8-12" annually) to reach a spread of 12'. Also works nicely in a raised planter where it can weep over the sides. No known pests or diseases bother Russian Arborvitae, unlike other coniferous ground covers which can be plagued by tip blights. Hardy in zones 3-8.

Multi-Season Interest Flowering Tree

Stewartia pseudocamellia (Japanese Stewartia) is a very attractive flowering tree. Although slow to establish, this tree reaches 20-40’ tall at maturity. The multi-stemmed habit showcases its ornamental exfoliating bark, which displays dark brown to red hues. At the end of June through early July, numerous 3” diameter, white flowers appear with striking yellow stamens. Japanese Stewartia grows best in light shade in soils that are moist, organically rich, and acidic. Truly a multi-season interest tree, Japanese Stewartia also has terrific fall foliage that ranges from orange to scarlet. Japanese Stewartia is also a pest-resistant, prized performer that needs little pruning. Hardy in zones 5-7.

2001

Deer-Resistant Conifer

Cephalotaxus harringtonia 'Duke Gardens' (Duke Gardens Plum Yew) is a small gracefully spreading conifer. Its desirable, almost-black green needles and elegant shape make it useable as a small growing, 2-3' height, 3 to 4' width, accent plant or in a regal mass planting. It's best placed in a wind protected, light shade area (will withstand heavy shade) in well-drained soil and is drought tolerant once, established. This slow-growing refined and deer-resistant plant will be a welcome and elegant replacement for the Common Yew (Taxus) which are being destroyed by the voracious eaters. 

Evergreen Ground Cover for Dry Shade

Epimedium x perralchicum 'Frohnleiten' (Frohnleiten Barrenwort) is a sturdy, quick establishing, low maintenance ground cover for the shade. It performs best in moist, organic soils, but will grow admirably in difficult, dry shade locations. For fast coverage, plant 3" pot-sized plants 6-8" apart. Plants spaced 12" apart will fill in more slowly as the plants produce runners. Cut back in the spring. Bright yellow flowers appear soon after, then the fresh green foliage with a red edge resumes growth and remains evergreen throughout the year. Hardy in zones 5-9.

Tall, Late-Blooming Perennial 

Rudbeckia nitida 'Autumn Sun' (syn. 'Herbstsonne') (Autumn Sun Coneflower) produces a dramatic show in the late August and September garden with many 3 to 411 yellow-rayed, green eyed flowers on 5' to 6' upright growing stems holding large shiny, gray-green leaves. Remove spent flowers to prolong bloom. Grow it in full sun to prevent flopping. Leave plants and seed heads to provide structure and texture in the winter garden. 

Small, Ferny-Leafed Shrub

Stephanandra incisa 'Crispa' (Cutleaf Stephanandra) is a small to 3' tall plant with deeply incised, triangular glossy green leaves producing a nice, textural shrub. It spreads reasonably over time by self-rooting branches and makes a good erosion control plant on hills and slopes or can be shaped into a nice, dwarf hedge. The attractive foliage, plus the graceful arching habit, makes it a pleasant specimen plant as well as being suitable for a shrub border. Use this tough, disease-free plant in part shade to sun, and average soil. The fall color is a nice apricot to maroon-purple.

2002

Carefree, Long-Flowering Ground Cover 

Ceratostigma plumbaginoides (Plumbago or Blue Leadwort) is a durable, deciduous ground cover that can be used for edging or at the front of the border. Bright green foliage emerges late and can prevent weed growth. Deep gentian blue flowers appear in August or September. Foliage turns brilliant reddish bronze in late September and persists through November. Cut it back hard at the end of the season. Grow in full or partial sun locations in well-drained soil that is high in organic matter. Because it emerges late, interplant with early-flowering bulbs for best results. It grows 8-12” tall with a 12-18” spread. Hardy in zones 5-10. 

Beautiful Climber 

Hydrangea anomala subsp. petiolaris (Climbing Hydrangea) is an attractive, clinging vine. Train it to cover a rock wall or sturdy arbor, as a ground cover or up a tree. Although slow to start, this Hydrangea becomes vigorous once established. Four-season interest with 4-6” diameter white flower clusters lasting over four weeks, beginning late June, long-season foliage, structural and multi-colored exfoliating bark. Well worth the time needed to establish. Hardy in zones 4-8. 

Disease-Resistant Flowering Crabapple

Malus Sugar Tyme® (syn.'Sutyzam' P.P.#7062) (Sugar Tyme® Crabapple) is a highly disease-resistant crabapple. This small tree reaches 18’ tall with a spread of 15’ at maturity. It has profuse and slightly fragrant pink flowers, attractive foliage, persistent red fruit, and interesting, smooth bark which adds appeal throughout the wintertime. This multi-season specimen tree has consistently good flowering and performs best in sun. Sugar Tyme® Crabapple is tolerant of a wide range of soil conditions, although it performs best in rich, welldrained soil. Hardy in zones 5-8.

Medium-Sized Flowering Shrub

Viburnum dilatatum ‘Erie’ (Erie Linden Viburnum) is an adaptable, medium-sized, 8’ high, 8’ spread at maturity, broad, rounded shrub. Use as specimen, in shrub borders, mass plantings, even as hedge. Creamy-white late May or early June 4-5” flowers, in flat clusters, give way to red fall fruit (turns coral after frost) as dark green glistening foliage turns yellow-orange to rust. Flowers best in full sun but adapts to light shade, in moist soils. Hardy in zones 5-7. 

2003

Compact, Fragrant Shrub 

Clethra alnifolia 'Compacta' (Compact Summersweet) is a small growing, dense multi-stemmed shrub that grows to 4'-5' tall with a spread of 6'. A profusion of fragrant white flowers appear in July. Rich dark green foliage turns an attractive yellow color in fall. It does best in partial shade in soils with adequate moisture but is tolerant of a wide range of conditions. Its useful in a shade garden, seashore plantings, foundation plantings, can be massed or used as a compliment to perennials in a mixed border. Hardy in zones 3-9.

Jim's Pride Delightful Daphne 

Daphne × transatlantica 'Jim's Pride' (formerly Daphne caucasica) (Jim's Pride Daphne) is a wonderfully scented small shrub, growing to about 4’ by 4’. Fragrant white May or June flowers cover the attractive somewhat grey green leaves which generally remain throughout the year. Flowers continue until frost and may sporadically appear during any warm days of winter. It grows best in partial shade with excellent drainage. Purchase healthy looking plants with many white feeder roots. Hardy in zones 5-9.

Dry Shade Perennial 

Heuchera villosa ‘Autumn Bride’ (Autumn Bride Alumroot) is a hard-working native of a mostly evergreen perennial for difficult dry shade locations. It will tolerate sun and appreciate more moisture. The attractive white-green fuzzy leaves form a 15” tall by 24” wide mound in decent conditions that is covered with wands of white flowers in September. Utilize as a ground cover, edging or specimen plant and in woodland garden or massed. Hardy in zones 3-8.

Eastern Hemlock Replacement 

Thuja plicata (Western Arborvitae) is a dark green graceful pyramidal conifer which provides good year round color. Its stature makes it an adaptable specimen plant or for use in a large hedge, for mass planting and screening and can be used to replace hemlocks that have been decimated by wooly adelgid. For best results plant in sun or partial shade in moist acidic soil, though it is tolerant of dense shade and alkaline soils. It grows at a moderate pace to reach 50 to 70’. Hardy in zones 5-7.

2004

Decorative, Flowering Shrub

Hypericum frondosum 'Sunburst' (Sunburst Golden St. Johnswort) is an upright, 30” x 30” deciduous shrub with a profusion of bright yellow flowers in June into July and attractive blue-green foliage. It has decorative reddish-brown fruit capsules (nice in floral arrangements) and exfoliating bark in winter. This dependable performer, even in dry conditions, is pest & disease resistant and low maintenance; rejuvenate in five or six years by cutting back near ground (stooling) in early spring. It works well massed, in border or foundation plantings, or even as single accent plant. Hardy in zones 5-8.

Long-Flowering, Summer Perennial

Leucanthemum ×superbum 'Becky' (Chrysanthemum 'Becky') (Becky Shasta Daisy) is a showy, long flowering (June to August with deadheading) perennial with white daisy-like blooms and dark green shiny evergreen foliage. Avoid overhead watering for best appearance.  It is pest-resistant & requires little maintenance; divide in spring or after flowering. It’s good for cutting and especially useful in sunny borders, mixed plantings, or in large masses in moist, neutral soil. Hardy in zones 5-10.

Fragrant, Evergreen, Woodland Ground Cover

Sarcococca hookeriana var. humilis (Dwarf Sweetbox) has attractive, dark evergreen foliage that hides the highly fragrant white flowers which bloom February-March. This woodland ground cover grows to about 24” in height and width, and spreads slowly to form nice drifts. Plant in moist, acidic soils in shaded or partially shaded areas.  Dwarf Sweetbox works well with rhododendrons and other acid-loving plants. It is best to mulch new plantings. It is highly pest resistant. Hardy in zones 6-8. 

All-Season, Ornamental Tree

Sorbus alnifolia (Korean Mountain Ash) is an extremely decorative, deciduous tree with few problems (unlike other Mountain Ashes). With a moderate growth rate, it will reach a height of 40' to 50' and a width of 50' Outstanding characteristics include white flowers in May and a brilliant show of color from September to November. This includes two months of pink to red fruit that are attached by persistent red pedicels and yellow, orange or reddish fall foliage with year round silvery gray bark of the trunk and main branches. Sorbus performs well in moist, neutral to alkaline soil and part to full sun location. Hardy in zones 4-7.

2005

 

Summer-Flowering Shrub

Hydrangea quercifolia (Oakleaf Hydrangea) is a dramatic, summer-flowering shrub with creamy white cone-shaped flowers up to 1 long that age to purplish-pink. Deep-green oak-leaf shaped leaves turn shades of red, orange and purple in fall. Use as a specimen, in the shrub or mixed border, or on a woodland edge. Mature size is about 8 tall and 10 wide, though it could be kept smaller with pruning. Will grow in part-shade but full sun produces the most flowers and best fall color; on older plants, peeling cinnamon bark adds winter interest. It does well in moist, well-drained fertile soil; mulch to keep root zone cool. Its loose growing habit is well suited to naturalistic gardens. Hardy in zones 4-8.

 

Elegant, Evergreen Tree

Picea orientalis (Oriental Spruce) is a dense, graceful, narrow, pyramidal spruce with pendulous branches, and short, ¼ - ½' needles that are a very dark green and shiny. It is an elegant evergreen tree for Long Island landscapes that grows 50' to 60' tall and 20' to 25' wide after about 60 years, to 120' ultimately with enough space. It is adaptable to poor soils (water well until established, however) and has few disease or insect problems. This is an attractive specimen tree for any location and is superior to both Norway and White Spruce. Hardy in zones 4-8.

Beautiful Flowering Cherry

Prunus ‘Hally Jolivette’ (Hally Jolivette Cherry) is a beautiful, small, flowering cherry tree. This cherry grows fast and flowers profusely even when young. The pink buds of the semi-double flowers start to open in late April through early May. Flowers are light pink or white with a deep red or purple center, and appear before the leaves, providing continually opening blossoms over a 10-20 day period. Hally Jolivette Cherry is densely branched, yet finely textured. It may also be grown as a multi-stemmed shrub, although this form is rarely available. It is very cold-hardy and stress-tolerant for a cherry. Hardy in zones 5-8.

 

Tough, Deer-Resistant Ground Cover

Waldsteinia ternata (Siberian Barren-strawberry) is a tough, vigorous, mat forming semi-evergreen ground cover. This low growing plant reaches only 4-5” tall and has shiny foliage that resembles a strawberry plant. ½” wide, saucer-shaped, bright yellow flowers appear in late spring through early summer. This plant thrives in humus-rich, acidic soil in partial or full shade. It effectively competes with weeds once established. Works well as a lawn alternative or ground cover in a natural garden and is deer resistant. Hardy in zones 4-7. 

2006

Non-Fruiting Rose-of-Sharon

Hibiscus syriacus ‘Diana’ (Diana Rose-of-Sharon) is vastly superior to the old-fashioned Rose-of-Sharon.  Its 6-7’ height, slightly less wide habit is more refined, has better glossy dark green foliage, a profusion of terrific waxy, ruffled, pure white 4” flowers, from July to October, and most of all, does not produce masses of pesky seed and seedlings.  Plant in spring or fall in decent, well-drained soil in part to full sun locations.  It is highly adaptable to a wide range of less than ideal locations, is pollution resistant, and requires little maintenance beyond selective pruning for shape.  Use as a specimen, hedge, or mass planting, in moon garden, in industrial and mall sites; can also be trained as an elegant tree form. Hardy in zones 5-8.

Elegant Holly with Hanging Fruit

Ilex pedunculosa (Longstalk Holly) is one of the most attractive hollies with thornless, shiny, 1-3” long, dark green leaves and interesting red ¼” fruit that hangs on 1 ½” stems which generally persist from October into November when birds don’t get them.  It has a graceful balance of dense foliage with open structure over its height which can reach 30’ and spread of 15’ but generally is closer to 15’ tall in cultivation.  Plant in spring in decent, fertile, moist soils though is tolerant of less than ideal conditions, best in partial shade to partial sun locations; male needed to pollinate female for fruit production. Hardy in zones 5-7. 

Durable Shrub Rose

Rosa ‘Radyod’ (The Blushing Knock Out® Rose) is a pale pink addition to the tough and durable Knock Out® rose group.  It has been bred to resist blackspot, mildew, and Japanese beetles yet produce profuse light pink flowers, which change into shell pink 3 to 3 ½” blooms as they age.  Plant container grown specimens into rich, well drained soil in spring where they will receive 5 or more hours of sun; mulch with 2” of organic mulch.  To improve flowering and performance, use slow release fertilizers in a constant feed program; liquid fertilizer in spring when growth resumes.  Use as a specimen, foundation plantings, mixed border or as a colorful hedge. Hardy in zones 4-9.

Silver-Leafed, Perennial Ground Cover

Stachys ‘Helene Von Stein’ (Helene Von Stein Lamb’s Ears) is a beautiful plant with 6” X 2” silvery leaves.  It grows to about 8” tall, rarely flowers though an occasional flower spike will appear; remove or retain if it’s to your taste.  It’s generally considered a clump forming plant but will continue to spread and create a dramatic groundcover over years.  It is a wonderful specimen plant, edger for borders or walkways, useful in seashore, herb and moon gardens.  Plant from containers in fall or spring in sunny, well-drained lean soil.  This low-maintenance plant is also deer and pest resistant. Hardy in zones 4-10.

2007

Compact, Flowering Shrub

Abelia grandiflora ‘Rose Creek’ (Rose Creek Glossy Abelia) is a low growing, dense cultivar that has attractive rosy foliage. It has light pink to white flowers starting in July, terrific foliage color from Sept; both lasting until a hard frost. Generally grows to 3’ tall; should be cut to the ground in late winter every 3-5 years. Use in mixed border, a hedge, even an interesting groundcover; plant in sun to part shade in well-drained organic soils with good moisture during growth. Plants are evergreen where protected. Hardy in zones 6-9.

 

Blue-Hued, Ornamental Grass

Panicum virgatum ‘Heavy Metal’ (Heavy Metal Switchgrass) is a selection of a native prairie grass with 5’ upright, metallic blue leaves. It is terrific in naturalized gardens and mass planted particularly when sun setting behind. Pink flowers give nice late season color. Leaves turn yellow in fall; for winter interest, leave stand until early spring. Grow this low maintenance, pest resistant grass in full sun in average soils; withstands drought and heat; space new plantings 3’ apart. Hardy in zones 5-9. 

Unique, Glossy, Evergreen Tree

Sciadopitys verticillata (Japanese Umbrella Pine) is a remarkably beautiful dark green pyramidal tree has dense whorls of glossy flat needles. This specimen tree is slow-growing in early years (approx. 6” per year), becomes a valuable mature plant in any landscape, generally to 30’ tall by 20’ wide, occasionally to 60’ or taller. Plant in spring or fall in full sun to light shade in fertile moist soil. Usually pest free and deer resistant; only pruning is of competing leaders; do not remove lower branches. Hardy in zones 5-8.

Small, Evergreen Shrub

Skimmia japonica (Japanese Skimmia) is a rounded and dense evergreen shrub to about 3’ X 4’ for foundation and mixed plantings; nice sized for small gardens. Plant in moist, organic acid soils in shade and part shade areas and protect from winter sun and wind. A male must be planted near female plants (up to 6) to produce the persistent bright red fruit in Nov. (lasts until spring). Hardy in zones 6-8.

2008

Vigorous, Fragrant Vine

Clematis montana var. rubens (Pink Anemone Clematis) is a vigorous, disease-resistant vine, 20-30’ with many rosy pink 2-2 ½” fragrant flowers from May into July.  Grow in organic soil with roots in shade or mulched with top growth in sun to part shade with good moisture during growth.  Prune after flowering for shape and size.  Use on fences or other sturdy supports. Hardy in zones 4-9.

Low-Maintenance, Attactive Ground Cover

Geranium x cantabrigiense ‘Biokovo’ (Biokovo Hardy Geranium) spreads moderately fast to form a dense ground cover, compact, generally to 6”, occasionally to 12” tall.  Plant on 12” centers, 6” for faster coverage.  It gives better weed control than other geraniums; does not need to be cut down after flowering; glossy green foliage turns reddish in fall.  It is tolerant of some shade but produces more white to light pink flowers in sun and part sun locations.  Grow in well-drained soils with moisture during growth. Hardy in zones 5-9.

Versatile, Small Flowering Tree

Syringa reticulata ‘Ivory Silk’ (Ivory Silk Japanese Tree Lilac) is a delightful small tree that grows 20-25’ tall. It has dark green foliage and large clusters of creamy white flowers which appear in June. A tough tree that tolerates urban conditions, Japanese Tree Lilac should be grown in full sun in any well-drained soil. Japanese Tree Lilac is quite versatile and can be used as a street tree under utility lines, as a small specimen, in a grouping, near buildings, and for property line screening. Hardy in zones 3-7.

Dwarf, Fragrant, Evergreen Shrub

Viburnum x burkwoodii ‘Conoy’ (Conoy Burkwood Viburnum) is a terrific pest-resistant, dwarf, evergreen shrub with flat, fragrant, creamy white May flowers; dense, rounded to 4’ tall and 7’ wide.  Grow in sun to part shade locations in well-drained alkaline soil; best fruiting (reddish purple) for birds if planted in groups or as a hedge but is a good specimen or foundation planting. Hardy in zones 5-8.

2009

Unique, Large, Flowering Shrub

Aesculus parviflora (Bottlebrush Buckeye)

Tough, Ornamental Grass

Carex 'Ice Dance' (Ice Dance Japanese Sedge)

All-Season, Specimen Tree

Parrotia persica (Persian Parrotia)

Flowering Ground Cover for Moist Shade

Phlox stolonifera (Creeping Phlox)

 

2010

Native, Flowering Vine

Lonicera sempervirens (Trumpet Honeysuckle)

Late-Flowering Magnolia

Magnolia 'Galaxy' (Galaxy Magnolia)

Long-Blooming Perennial

Salvia nemorosa 'Caradonna' (Caradonna Sage)

Small, Specimen Flowering Tree

Styrax japonicus 'Emerald Pagoda' (Emerald Pagoda Japanese Snowbell)

2011

Blue, Drought-Tolerant Perennial

Baptisia australis (Blue Indigo)

 

Columnar, Stately Tree

Carpinus betulus 'Frans Fontaine' (Frans Fontaine European Hornbeam)

Early-Flowering Small Tree

Cornus mas 'Golden Glory' (Golden Glory Corneliancherry Dogwood) is a small, multi-stemmed tree or large shrub that grows up to 25’ in height. Golden Glory is a more upright form that flowers abundantly. The small yellow flowers are a true harbinger of spring as they open in early April. Attractive, exfoliating bark and small, red, summer fruits provide year-round interest. It can be grown in full sun or partial shade in any well-drained soil. This tough tree does not succumb to the common problems that plague other dogwoods. Hardy in zones 4-7.

Evergreen, Weed-Suppressive Creeper

Sedum spurium 'John Creech' (John Creech Two Row Stonecrop)

2012

Small, Specimen Tree with Unique Bark

Acer griseum (Paperbark Maple)

 

Native, Multi-Season Interest Perennial

Amsonia hubrichtii (Threadleaf Blue Star)

Fragrant, Flowering Perennial Herb

Calamintha nepeta 'Blue Cloud' (Blue Cloud Calamint)*

Small, Pest-Resistant, Flowering Tree

Chionanthus retusus (Chinese Fringetree)

*Photo Source: Missouri Botanical Garden, www.missouribotanicalgarden.org