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Connoisseur Plants – 2001

Connoisseur Plants are rare, new plants or hard to find old favorites, and they are part of the annual appeal and membership drive to benefit the Arboretum's many fine programs and its day-to-day operational expenses. These wonderful plants were sent to those who joined the Friends of JC Raulston Arboretum in 2001 and in December of the previous year at certain higher membership levels.

In 2001, we offered a total of 66 taxa from which our members were able to choose! These plants are no longer available.

Acer pseudosieboldianum subsp. takesimense (Sapindaceae)
Takeshima maple
Small deciduous tree. Foliage and form like Japanese maple with gray-green bark. Red-orange fall color. Plants grown from seed collected from our original tree dating back to the 1985 Korean expedition.

Bignonia capreolata 'Jekyll' (Bignoniaceae)
crossvine
Semi-evergreen twining vine. Flowers are rich orange with yellow throat inside. Best flowering in full sun. This plant was originally found by Dr. Michael Dirr from a plant growing on Jekyll Island off the coast of Georgia. 1 gallon, 10" tall
Number of photographs in the Photograph Collection: 31

Browallia americana (Solanaceae)
bush violet
Annual with small blue flowers with white centers. Prolific bloomer in full sun. A tender plant. Most seed sold in United States is from dwarf selections. These are from wild-type seed, and the resulting plants are robust and in constant bloom. (1 quart)

Calycanthus ×raulstonii 'Hartlage Wine' (Calycanthaceae)
Raulston allspice
A JC Raulston Arboretum 2001 release. This is a hybrid between Sincalycanthus chinensis and the native Calycanthus floridus. It is a medium-sized shrub with large glossy leaves and 3" wide wine-colored flowers that are blushed white, blooming from spring through early summer. Grows best in partial shade. The first offering of this plant! 1 gallon, 6" tall.
Number of photographs in the Photograph Collection: 77
Number of photographs in J. C. Raulston's slide collection: 1

Castanopsis sclerophylla (Fagaceae)
Chinese tan-bark oak
Medium-sized, broadleaf, 30', evergreen tree, related to evergreen oaks. Rich, dark green foliage, iridescent bronze on the undersides. Formerly known as Lithocarpus chinensis. Zone 7. Native to China. Sun to light shade. (Cutting-grown plants)
Number of photographs in the Photograph Collection: 13

Cephalotaxus harringtonia 'Gnome' (Taxaceae)
dwarf Japanese plum-yew
Evergreen shrub with dark green needles. Dwarf cultivar reaching 3' by 3' and forming dense mound. Best sited in shade, but it can handle sun. Cultivar originated at the famous Hillier Arboretum of Britain. 1 quart.

Chamaecyparis thyoides 'Webb Gold' (Cupressaceae)
golden Atlantic white-cedar
Conical evergreen with soft yellow-gold foliage. Slower growing and prefers full sun and moist, but not waterlogged sites. 2 gallon, 10".
Number of photographs in the Photograph Collection: 1

Cornus mas 'Aurea' (Cornaceae)
golden Cornelian cherry
Large shrub or small deciduous tree. Yellow flowers in spring, followed by bright gold-yellow leaves, turning chartreuse by summer. Rich, gray-brown exfoliating bark on older plants. 1 quart. Plants from rooted cuttings.
Number of photographs in the Photograph Collection: 4

Cornus officinalis 'Spring Glow' (Cornaceae)
Cornelian cherry
Large shrub or small deciduous tree. Bright yellow flowers in spring. Dark glossy leaves and gray-brown exfoliating bark. A plant selected at the JC Raulston Arboretum for its outstanding heat tolerance, compared to other cultivars. 1 quart.
Number of photographs in the Photograph Collection: 77

Dendropanax trifidus (Araliaceae)
tree ivy
Small broadleaf evergreen tree with large glossy three-lobed leaves on juvenile plants. Yellowish-green flowers followed by black fruit. Not well known, but hardy through Zone 7. Appears almost tropical. 1 gallon, 1' tall.
Number of photographs in the Photograph Collection: 13
Number of photographs in J. C. Raulston's slide collection: 1

Deutzia rubens (Hydrangeaceae)
white deutzia
Vigorous deciduous shrub with white flowers. Graceful arching branches, leaves have white undersides. Nice clean foliage. Full sun to about 6' tall.
Number of photographs in the Photograph Collection: 8

Digitalis viridiflora (Plantaginaceae)
green foxglove
A herbaceous perennial foxglove with clean, dark green, smooth leaves and spikes of greenish-yellow flowers. Native to the Balkans. Seed from German seed exchange. 2 gallon with nice, large rosettes.

Diospyros japonica (Ebenaceae)
Japanese date-plum
Deciduous tree closely allied to Diospyros lotus of Eurasia. Medium-sized shade tree with nice fall color, and our specimens showed no signs whatsoever of the leaf spot that plagues our native persimmon (Diospyros virginiana). These plants were grown from seed wild-collected in Taiwan. 1 quart. Very nice specimens.

Edgeworthia chrysantha (Thymelaeaceae)
golden paperbush
Small deciduous shrub with nodding terminal clusters of very fragrant yellow flowers clothed with silky hairs. Blooms in winter. Plant in shade to part shade. (1 quart)
Number of photographs in the Photograph Collection: 56
Number of photographs in J. C. Raulston's slide collection: 1

Edgeworthia papyrifera 'Eco Yaku' (Thymelaeaceae)
Japanese paperbush
Deciduous shrub with blue-green foliage. Creamy-white flowers in late winter have silvery-silky flower buds. Plant in shaded protected site. 'Eco Yaku' is a superior form of this species, collected by Don Jacobs (of Eco Gardens) on an expedition to Yakushima Island, off the southern coast of Japan. (1 quart, 10"–12" tall)
Number of photographs in the Photograph Collection: 10

Eupatorium greggii (Asteraceae)
Texas ageratum
Herbaceous perennial with abundant, small blue flowers, similar appearing to annual ageratum or blue mistflower (Eupatorium coelestinum) that are produced in the autumn. Grows 2'–3' tall. 1 gallon, 2' tall.
Number of photographs in the Photograph Collection: 3

Forsythia 'Tremonia' (Oleaceae)
Deciduous shrub with yellow spring flowers. Sun. Attractive, deeply cut leaves, unusual for forsythia cultivars, with a vigorous upright habit.

Franklinia alatamaha (Theaceae)
Franklin tree
Deciduous shrub or small tree. Showy white flowers in summer to fall, often coinciding with rich scarlet fall color. Locate in partial shade. Once native to southern Georgia on the banks of the Altamaha River, but now considered extinct and only known from cultivation.
Number of photographs in the Photograph Collection: 15
Number of photographs in J. C. Raulston's slide collection: 7

Helianthus giganteus (pale yellow) (Asteraceae)
giant sunflower
Herbaceous perennial sunflower reaching heights of 5'–6' tall. Attractive foliage, topped by large clusters of pale yellow flowers in late summer to early autumn. A show-stopper when in flower.

Helianthus 'J.C.'s Buttercream' (Asteraceae)
sunflower
Herbaceous perennial sunflower, a tall-growing plant reaching up to 5'. In autumn, plants produce a profusion of soft yellow blooms. Originated as a chance hybrid in the Perennial Border at the Arboretum.

Helianthus simulans (Asteraceae)
muck sunflower
Herbaceous perennial sunflower with yellow flowers produced in September to October. Tolerant of heavy or wet soils. An uncommon native sunflower found in several southeastern U.S. states.

Hydrangea quercifolia 'Lynn Lowrey' (Hydrangeaceae)
oakleaf hydrangea
"A newly introduced hydrangea found in the Tunica Hills region of Louisiana, a place renowned for its rich flora. This cultivar, supplied to us by David Creech, Ph.D., of Stephen F. Austin University's Mast Arboretum, has been the most vigorous of all the oakleaf hydrangeas that we have grown to date. It was originally listed under the name 'Angola Prison'."
Number of photographs in the Photograph Collection: 5

Hypericum aviculariifolium subsp. uniflorum (Hypericaceae)
Low-growing, sub-shrubby to spreading plant with small (1/4") blue-green leaves, offset by bright yellow flowers in summer. Plants were grown from seed supplied to us from a botanical garden in Hungary. (1 quart)

Hypericum erectum (Hypericaceae)
Herbaceous perennial St. John's-wort from Japan. Green leaves with small yellow flowers on erect stems in mid- to late summer. Grown from seed from Japan. (1 quart, 1' tall)

Hypericum 'Hidcote' (Hypericaceae)
shrubby St. John's-wort
A hybrid St. John's forming a small, semi-evergreen shrub with dark blue-green leaves. Large waxy golden yellow flowers bloom profusely in summer. Named for the famous garden in England from where it likely arose.
Number of photographs in J. C. Raulston's slide collection: 1

Hypericum tetrapterum (Hypericaceae)
St. John's-wort
Herbaceous perennial St. John's-wort from Europe, 3'–4' tall, producing terminal clusters of bright yellow flowers in summer along winged stems. (1 quart, nice, full plants)
Number of photographs in the Photograph Collection: 2

Ilex cornuta 'Autumn Fire' (Aquifoliaceae)
early-fruiting Chinese holly
Evergreen holly with early-maturing red fruits—September for us in Raleigh. The original plant came to us as seed collected in Korea by J. C. Raulston.
Number of photographs in the Photograph Collection: 16

Ilex 'Rock Garden' (Aquifoliaceae)
dwarf holly
A true genetic dwarf evergreen holly, one specimen in our collection is only 2' tall after eight years. This is a female with large, bright red berries. A complex hybrid with several parents.

Illicium parviflorum 'Forest Green' (Illiciaceae)
yellow anise
A more compact and improved form of the broadleaf evergreen shrub, yellow anise-tree, with darker green leaves. Does well in wet soils and sun or shade—more sun tolerant than any other Illicium. A recent introduction by Michael Dirr, Ph.D., of the University of Georgia.
Number of photographs in the Photograph Collection: 1

Illicium 'Woodland Ruby' (Illiciaceae)
pink anise
A stunning new hybrid of the red-flowered Illicium mexicanum and white-flowered Illicium floridanum f. album introduced by Woodlanders Nursery. Ruby-pink starfish-like flowers are larger than those on either parent. Extended blooming period from the Mexican parent. Destined to be a future winner.
Number of photographs in the Photograph Collection: 13

Jasminum iraidii (Oleaceae)
shrub jasmine
A species which we received from a seed exchange company in China several years ago. Pubescent leaves with yellow flowers and black seed. Cold hardy in Raleigh. Medium-sized deciduous shrub. Cuttings from our original plant.
Number of photographs in the Photograph Collection: 3

Jasminum parkeri (Oleaceae)
Parker's jasmine
Compact, prostrate, evergreen shrub. Handsome tiny foliage with bright yellow flowers. An overlooked gem. Sun to part shade. Zones 7–11.
Number of photographs in the Photograph Collection: 8
Number of photographs in J. C. Raulston's slide collection: 1

Juniperus virginiana 'Woodlander's Weeping' (Cupressaceae)
weeping eastern redcedar
Large evergreen tree with pendulous branches. Originated from cuttings collected by Woodlanders Nursery from a specimen growing in Hancock County, Georgia. (1 gallon, 8" tall)

Kadsura japonica 'Shiromi' (Schisandraceae)
Japanese kadsura vine
Evergreen vine of modest growth rate with yellowish white flowers followed by white to pink-tinged fruit. Sun to shade. Zone 7. Native to Japan to Korea. (12" plants)

Lagerstroemia indica 'Low Flame' (Lythraceae)
One of several dwarf crepe myrtles from Greenleaf Nursery, listed as growing only to 3'–6' or 6'–12', depending on the source. 'Low Flame' produces reddish-pink flowers in summer.

Lathyrus chloranthus 'Lemonade' (Fabaceae)
yellow sweet pea
A relative of sweet-pea with yellow flowers. (1 quart, good sized)

Lonicera periclymenum 'Graham Thomas' (Caprifoliaceae)
European woodbine
Deciduous twining vine with abundant, large white to yellow flowers. Cultivar named for the famed British plantsman, Graham Stuart Thomas. One of the most striking of the honeysuckles when it is in flower.

Lonicera sempervirens 'Magnifica' (Caprifoliaceae)
trumpet honeysuckle
Twining, deciduous vine with bright, 2" orange-red tubular flowers, yellow inside in summer. Red berries set in fall. Great for hummingbirds. Prolific bloomer, even into a mild winter. Zone 4. Cuttings taken from a plant saved from the West Arboretum construction site.
Number of photographs in the Photograph Collection: 1

Nerium oleander (Apocynaceae)
hardy oleander
Cold hardy oleander with double yellow flowers. Tony Avent discovered it while working at State Fairgrounds.
Number of photographs in the Photograph Collection: 5
Number of photographs in J. C. Raulston's slide collection: 6

Penstemon 'Purple Tiger' (Plantaginaceae)
beard-tongue
Hardy herbaceous perennial with showy purple flowers held on erect stalks, similar in appearance to foxglove (Digitalis). (1 gallon)

Philadelphus scaber (Hydrangeaceae)
rough mock-orange
Deciduous, medium-sized shrub with fragrant white flowers. A Korean species. Received as seed collected from the famous Chollipo Arboretum in South Korea.
Number of photographs in the Photograph Collection: 11

Phlomis tuberosa (Lamiaceae)
tuberous Jerusalem sage
Herbaceous perennial with pubescent, arrowhead-shaped foliage and purple to pink flowers in summer.
Number of photographs in the Photograph Collection: 1

Physocarpus capitatus (Rosaceae)
western ninebark
Upright to spreading deciduous shrub, 3'–8' tall, producing white flowers. The three-lobed leaves recall those of the currants, but this plant is actually related to Spiraea.
Number of photographs in the Photograph Collection: 2

Potentilla fruticosa 'Maanelys' (Rosaceae)
Moonlight shrubby cinquefoil
Small, compact and dense shrub with rounded habit. Soft yellow flowers persist from June to frost. Full sun for best flowering. Performs well in dry locations. Despite the fact that the shrubby Potentillas are not known to grow in the southern United States, this cultivar has performed well beyond our expectations, forming a nice plant with spring interest.
Number of photographs in the Photograph Collection: 2

Rhododendron 'Fred D. Cochran' (Ericaceae)
Carla hybrid azalea
Red-flowered evergreen azalea with superior resistance to root rot. An NC State University introduction. Hybridized by and named in honor of Fred Cochran, Ph.D., Professor Emeritus of the NC State University's Department of Horticultural Science.
Number of photographs in the Photograph Collection: 2

Rhododendron 'Keisetsu' (Ericaceae)
Satsuki hybrid azalea
Evergreen azalea producing 3" red flowers with pink to white centers in May. Also with leaves streaked yellow-gold throughout, especially prominent on new growth. Zones 6–9.
Number of photographs in the Photograph Collection: 7

Rhododendron 'Silver Sword' (Ericaceae)
Girard hybrid azalea
Evergreen azalea with narrow leaves striped white on the margins and rosy-red flowers in spring.
Number of photographs in the Photograph Collection: 2

Rosmarinus officinalis 'Tuscan Blue' (Lamiaceae)
rosemary
Rigid upright rosemary with bright blue flowers. One of the cold-hardy cultivars.

Salix alba 'Dart's Snake' (Salicaceae)
contorted white willow
Large, deciduous tree with contorted branches, long leaves, and yellow bark. Great for wet areas and good winter interest. Fast growth rate.

Salix pendulata (Salicaceae)
pussy-willow
Small, deciduous tree with weeping branches. Fuzzy white buds in winter.
Number of photographs in the Photograph Collection: 3

Salix purpurea 'Nana' (Salicaceae)
dwarf purple-osier
Compact (3'–5') deciduous shrub with purple branches fading into gray. Attractive gray-blue foliage present during the growing season.
Number of photographs in the Photograph Collection: 2

Salix purpurea 'Pendula' (Salicaceae)
weeping purple-osier
Weeping pussy-willow with purple twigs. Medium-sized deciduous shrub good in wet locations.

Sedum spurium 'John Creech' (Crassulaceae)
Caucasian stonecrop
Low-growing, mat-like form with thick bronze discs for leaves. Full sun and good drainage suggested.

Sedum telephium (Crassulaceae)
common orpine
Evergreen herbaceous perennial with 1'–2' spread. Flowers are red-purple in late summer. Blue-gray, succulent foliage.

Spiraea japonica 'Gumball' (Rosaceae)
Japanese spirea
Compact, deciduous shrub producing pink flowers in flat-topped clusters in late spring. Fall color a muted purple.

Spiraea media (Rosaceae)
Russian spirea
Deciduous shrub with white flowers and some of the largest leaves you'll see on a spirea. Leaves also an attractive blue-green color, turning pink-purple in fall. Received as seed wild-collected on Mount Sorak in South Korea.

Spiraea thunbergii 'Fujino Pink' (Rosaceae)
apple-blossom Thunberg spirea
An exciting new cultivar of the commonly known Thunberg spirea. Unlike the typical white-flowered form, this cultivar produces flowers, pink in bud, opening to an apple-blossom white. Fall color can be intense red to orange to purple. (1 gallon, 1' tall)
Number of photographs in the Photograph Collection: 9

Stachys germanica (Lamiaceae)
downy woundwort
Herbaceous perennial with leaves covered in soft, woolly hairs. Produces spikes of pink-purple flowers in spring. Plants derived from seed collected in Portugal.

Styrax japonicus 'Snowfall' (Styracaceae)
Japanese snowbell
A plant selected from the NC State University campus displaying a dense, rounded canopy. Produces abundant, white flowers in spring. Exfoliating bark starts early on this cultivar. (1 gal, 18" tall)
Number of photographs in the Photograph Collection: 2

Tetradium ruticarpum (Rutaceae)
Himalayan bee-bee tree
A fast-growing small to medium deciduous tree, with large pinnate leaves. Native to the Himalayas, eastern and southeastern Asia.
Number of photographs in the Photograph Collection: 1

Thermopsis chinensis (Fabaceae)
Chinese false lupine
This herbaceous perennial is closely related to both the lupines and the false-indigos (Baptisia). Plants produce abundant spikes of clear-yellow flowers in spring—best display occurs in full sun. From seeds collected at a garden in Germany.

Thuja occidentalis 'Degroot's Spire' (Cupressaceae)
columnar American arborvitae
This is one of the narrowest, columnar forms of Thuja occidenatalis. This conifer, with a medium growth rate can be used as an accent plant. Very distinctive.
Number of photographs in the Photograph Collection: 1

Thuja occidentalis 'U. of Conn. Dwarf' (Cupressaceae)
dwarf American arborvitae
This superb dwarf form of American arborvitae hails from University of Connecticut. Mature plants form a tight, dense globe, only 3' tall after five to ten years. Plants are derived from cuttings salvaged from the original specimen that formerly grew in the West Arboretum (now the construction area). (2 gallon, 8" tall)

Thuja plicata 'Grovpli' (Cupressaceae)
Spring Grove® western redcedar
This beautiful new cultivar was received from Michael Dirr, Ph.D. Good as a specimen planting or as a quick-growing screen. It is similar in many regards to the widely planted 'Green Giant'. (2 gallon, 8" tall)

Thujopsis dolabrata var. hondai (Cupressaceae)
northern Japanese false arborvitae
This northern form of the false arborvitae from Japan displays densely-set, dark green foliage. For us, the plant forms a dense shrub, although in cooler climates it forms an upright (cone-shaped), evergreen tree.
Number of photographs in the Photograph Collection: 1
Number of photographs in J. C. Raulston's slide collection: 1

Thujopsis dolabrata 'Variegata' (Cupressaceae)
variegated false arborvitae
This form of the false arborvitae displays branch tips speckled creamy white, which on well-grown specimens, gives the entire plant a white cast. Our plant grows as a shrub, but in cooler climates, may be tree-statured.

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