Connoisseur Plants
Connoisseur Plants are rare, new plants, or hard-to-find old favorites. These wonderful plants are being offered to our upper level members, Collector (formerly Sponsor) level and higher.
Please note that several plants are available in very limited quantities. For some plants, we don't know the full range of hardiness, only how it has behaved at the JC Raulston Arboretum. Sometimes, we cannot find any information in our references on a particular taxon. This does not mean that the plant doesn't exist, perhaps just that we are staying one step ahead of published information. One of the purposes of the Arboretum is to test new plants for suitability to the southeastern United States. By growing some of these "new-to-us" plants in your own garden, you can be a part of this evaluation process. Feedback from you is invaluable!
Happy choosing, and thank you for your continued and invaluable support of the JC Raulston Arboretum.
To submit your selections, please use the form link in the e-mail you received on February 21, 2024 from Kathryn Wall. If you need assistance, please e-mail Kathryn at kbwall@ncsu.edu or call (919) 513-7004 Selections should be placed no later than end of day March 3, 2024.
Note: The distribution year listed below is the year the plants were awarded. Members request them early the following year. And they're picked up or delivered shortly thereafter.
1999 Plant Selection
Ampelopsis aconitifolia
climbing monkshood
Lush-growing deciduous vine with pea-sized blue fruit turning to yellow or orange-brown. Attractively textured foliage and ornamental fruit. Native to northern China. Zone 5.
- to 25'
- plant in sun to shade
- hardy
Mounding clump forming herbaceous perennial up to 3.5' with very fine foliage and attractive pale bluish flowers in late spring. Native to Massachusetts and Delaware. but escaped to southeastern United States. Drought tolerant and tough.
- hardy
Hairy rattleweed’s densely wooly foliage which clasps the stems looks more like a eucalyptus than a baptisia. Almost all parts of the plant are covered in silver hairs with the exception of the bright yellow flowers which are carried in the leaf axils in summer from late June into August. Ultimate size is 15"–20" tall and 18"–24" wide. This federally endangered native is found growing under pines with saw palmettos (Serenoa repens) and inkberry (Ilex glabra) in only 2 counties in Georgia. These plants were grown from seed from Plant Delights Nursery. Grow in average to dry soils with good drainage. Sun to part shade. Zone 6
- hardy
Yet another superb cultivar of Buxus sempervirens that showcases an atypical growth habit. 'Salicifolia Elata' grows as a dense, rounded, evergreen shrub, but with side branches that gently cascade downward. Leaves are longer than most commonly seen Buxus sempervirens cultivars, too. These plants were propagated from the extensive Buxus collection house at the JCRA in the Southhall Garden. Native from southern Europe to the Black Sea and Caspian Sea regions, Buxus sempervirens is one of the toughest evergreens available to us as gardeners. Avoid poorly drained sites.
- hardy
Caryopteris odorata
bluebeard
This Caryopteris has pink flowers in the summer. Has been hardy at the Arboretum. Needs sun to light shade. (2' plants)
Deciduous, bushy shrub to 6' with glossy, dark green leaves. Flowers form perfectly round, whitish-yellow "buttons" for an interesting show in late summer. Can take wet feet, grows along swampy areas. Sun. Zones 5–10.
- deciduous shrub to 6'
- plant in sun to part shade
- hardy to zone 5
- white flowers in late spring – summer
- butterfly/pollinator friendly
- native
Now accordingly considered an evergreen shrub of the first rank, as it deserves, Japanese plum-yew is a fairly familiar plant of southern U.S. landscapes. Most plants seen are the shrubby forms or cultivars, including these plants which are derived from cuttings derived from the germplasm collection assembled by Michael Dirr, Ph.D., and Donglin Zhang, Ph.D., at the University of Georgia (Athens, Georgia). Cephalotaxus harringtonia is an excellent evergreen shrub, tolerating most environmental stresses, including heat, drought, shade, and sun. Deer will not bother these plants. Just make certain not to site plants on sites with exceptionally poor drainage.
- hardy
The prized, but often difficult to find, double-flowered redbud is one of the favorites in our North American Plant Conservation Consortium Cercis collection. Large heart-shaped leaves on this somewhat upright selection usually turn clear yellow in the fall, often with a brownish margin. The early spring double flowers will be the envy of all your gardening friends as the blossoms glow from every branch of this vigorous tree in April before the leaves emerge. Full sun to shade.
- hardy
Leaves of the Mexican redbud are medium sized, shiny green with wavy margins. Same purple-red blooms in spring. Small tree. One of the two distinctive races of eastern redbud found in Texas, Oklahoma, and Mexico. (12" plants)
- deciduous tree to 18'
- plant in sun to shade
- hardy
- purple-red flowers in spring
Small ,multi-trunked tree with densely crowded stems all arising from a basal crown. Bright, pinkish-purple flowers open along stem in early spring before the heart-shaped leaves emerge. Unlike our native eastern redbud (Cercis canadensis), which is usually a single trunked tree, Chinese redbud bears flowers all along its many stems, creating wand-like columns of bloom.
- to 10'–15'
- plant in sun to part shade
- hardy
Smooth redbud (Cercis glabra) is a stellar spring performer, and the subject of many photographers that visited the JCRA. One of the earliest flowering, upright-vase-shaped redbuds in the JCRA, it is remarkably floriferous with rose-magenta flowers virtually covering the tree beginning in late February. Flowering lasts a full four weeks, beginning before and persisting well after its large leaves emerge. It has whitish bark and is multi-stemmed, ultimately reaching 15' tall. This taxon was previously known as Cercis yunnanensis, and it is a native of China.
- hardy
Chamaecyparis lawsoniana 'Golden Spire'
Lawson falsecypress
Narrowly upright, greenish yellow, evergreen false cypress, of which stock is native to coastal California and Oregon. (8"–10" plants)
Hardy deciduous tree with smooth bark. Grows to 50'. Long drooping panicles of fragrant white flowers in early summer. Leaves turn clear yellow before falling. Hardwood yields yellow dye. Eastern Asia, Eastern North America. (6" plants)
- flowering tree to 30'–45'
- plant in sun
- hardy
- white flowers in spring
Cornus stolonifera 'Isanti'
Shrub form of Cornus with red stems. This deciduous shrub is valuable for its winter interest. (12" plants)
Herbaceous perennial with tunicate bulbs, native to tropics and warm-temperate regions of both hemispheres. Bubblegum pink flowers bloom for three months from summer to fall when established.
- bulb to 2'–3'
- plant in sun to part shade
- hardy
- pink flowers in late spring to fall
- deer resistant
- drought resistant, fragrant
Cryptomeria japonica 'Kilmacurragh'
dwarf cockscomb Japanese cedar
Dwarf form with a flat-globose to bee-hive shape. Covered with small fasciations, never coarse. Native to Ireland. (4"–6" plants)
- to 4'
- plant in full sun to light shade
- hardy
Small, late summer-flowering, deciduous or semi-evergreen shrub. Lanceolate leaves turn crimson in autumn. White flowers. A bee plant. Native to North America to South America and the West Indies. Zones 6–11.
- semi-deciduous shrub to 8'
- plant in sun to part shade
- hardy to zone 5
- white flowers in summer
- butterfly/pollinator friendly and deer resistant
- Native. A pollinator magnet
Deschampsia cespitosa
tufted hair grass
This small handsome grass with pleated foliage has a clean look in the garden. Does well in moist spots with light shade. Flowers emerge in May in shades from yellow to purple, and are showy well into the summer. Grows 1'–3' tall. Zones 4–9.
- grass to 1'
- plant in sun to part shade
- hardy to zone 4
- yellow flowers in summer–early fall
'Summer Snow' has lovely white flowers in late spring and attractive medium green, deciduous leaves with white markings. It forms a low, broad mound typically 2'–4' tall and 3'–4' wide with slender branches. Native to Japan and southeastern China. Hardy in Zones 5–8.
- deciduous shrub to 2'–4' tall and 3'–4' wide
- plant in sun to partial shade
- hardy
- white flowers in spring
Digitalis parviflora
Herbaceous perennial grows to 3'. Bears tall cylindrical racemes of small reddish-brown flowers in late spring and early summer. Native to the mountains in northern Spain.
Elaeagnus pungens 'Glenn Compact'
silverthorn
Compact form of this evergreen shrub. This elaeagnus has stayed 3'–3.5' at the Arboretum. (3" plants)
- hardy
Euonymus fortunei 'Greenlane'
wintercreeper euonymus
Thick lustrous dark green leaves, vibrant year-round. Pinkish fruits with orange seeds. Matures at 4' by 4' to 6'. This is one Euonymous that did not get scale the last two summers like most other euyonmous. (12" plants)
Gelsemium sempervirens 'Margarita'
Carolina jessamine
Cold hardy form, fragrant, flowers slightly larger than species. Selected from seedlings.
- evergreen twining vine to 10'–20'
- plant in sun to part shade
- hardy
- yellow flowers in spring
Deciduous shrub. Young unfolding leaves suffused plum-purple, becoming green and purple flushed on undersides. In autumn, entire bush ignites into orange, scarlet and red. Flower petals are cadmium-yellow in winter. Originated in Hillier nurseries in 1962. (3" plants)
Plants under this name have generally been selections from the hybrids between H. moscheutos and the other herbaceous perennials of North Amer. or forms of H. moscheutos. Petals 5–6 in. long, whitish, pinkish, or purplish-rose, sometimes with basal crimson spot. Coastal marshes of Florida, Georgia, west to Mississippi. (12" plants)
- hardy root hardy semi-hardy tender
Ilex opaca 'Old Heavy Berry'
American holly
American holly with vigorous, large, dark green leaves. Produces heavy crops of large red fruits. Excellent winter hardiness.
Deciduous, vigorous twining shrub. J. beesianum X J. officinale, dull green leaves opposite, leaflets. usually 1, sometimes 3 or incompletely divided; flowers pink, fragrant, not very attractive. Hybridized in Nancy, France, but found later in western China. Zones 7–8. (2' plants)
- hardy
Juniperus chinensis 'Oblonga'
Chinese juniper
Upright, evergreen conifer. Grows to 10'–15' tall with a 3'–4' spread. Native to Asia. Zone 4. (10" plants)
- hardy
Juniperus horizontalis 'Aunt Jemima'
creeping juniper
Known as creeping juniper or creeping cedar. Procumbent shrub with long trailing branches forming a mat about 1' tall. A compact form of 'Plumosa' selected by the D. Hill Nursery, Dundee, Illinois. Native to the United States. (12" plants)
Juniperus thurifera 'Nana'
dwarf incense juniper
Evergreen conifer with blue-green foliage, upright habit, dwarf form. (12" plants)
Lagerstroemia indica 'Candy Cane'
crepe myrtle
Medium sized deciduous shrub with bi-colored (white and red) flowers. (8"–12" plants)
Climbing vine, evergreen in the South, flowers in spikes, orange-scarlet, yellow inside. 2 in long. in summer, but this cultivar has late flowering. Zone 4
- evergreen vine to 10'
- plant in sun
- hardy to zone 4
- red flowers in late spring
- red fruit in fall
- butterfly pollinator friendly, attracts birds
Deciduous tree with dense, dark green foliage. In the fall, the large, edible, reddish fruits are striking. This tree is a swamp species but has done well in dry soil. Major source of nectar for bees. Native in the Southeast from South Carolina to Florida. Reaches 30' tall. Zone 6–9.
- to 25'–45'
- plant in sun to part shade
- not showy flowers
Periploca sepium
silk vine
Deciduous, shrubby vine, twining to 10', similar to P. graeca, but smaller and more delicate. Flowers have a violet-brown interior with a yellowish-green exterior. Flowers in June–July. Leaves yellow in autumn. Native to China. Zone 7. (8" plants)
Semi-evergreen to evergreen, 4'–6' shrub. Has reddish pink shoots that become light green with pink and cream leaves. It does flower and has red fruit. Don't let the name throw you, it does not have the characteristics of the other Photinias. Native to China. Zones 6–7. (10"–18" plants)
- evergreen shrub to 6'
- plant in sun
- hardy
- white flowers in spring
- red fruit in fall
Picea retroflexa
Similar in habit to Picea abies. Has gray bark that exfoliates in thin scales. A tall, evergreen conifer. Native to China. (4" plants)
- hardy
Pieris 'Bert Chandler'
pieris
Evergreen shrub with attractive, salmon-pink young leaves at first, turning glossy cream-yellow, then white, and finally deep green. (8" plants)
Platycladus orientalis 'Sanderi'
dwarf oriental arborvitae
Dwarf, juvenile form of this conifer, slow growing with a more globose habit. Leaves are needle-like, blue-green in summer, purplish in winter. (3"–6" tall)
Prunus persica 'Pillar'
columnar flowering peach
Pyramidal form with light pink flowers in the spring. Species native to China. Zones 5–9. (12" plants)
A new cultivar from The NCSU Arboretum which differs from the species in being more upright (almost fastigate) with great vigor (2'–4' per year once established)—making a beautiful and fast-growing multi-trunk evergreen tree. USDA Zones 6–9. Best in sun. (4"–6" plants)
- hardy
Symphoricarpos ×chenaultii
Chenault coralberry
Fine textured, deciduous shrub. 4'–6' tall with abundant and open branches. Pink flowers in June–July. Fruits are very ornamental with red with white spots. "The best species of the genus." A 1940 hybrid from Ontario, Canada Zone 5. (4"–6" plants)
- hardy
Thuja occidentalis 'Asplenifolia'
American arborvitae
Evergreen tree with a narrow, ascending habit and dense, stiff twigs. Shoots are densely clustered at tip of branches becoming somewhat pendulous from the weight. Zones 3–7.
Thuja occidentalis 'Pygmaea'
dwarf American arborvitae
Dense, compact, irregular, dwarf conifer with blue-green foliage; 2' to 2.5' tall by 2'–3' wide. ( 6" plants)
- hardy
Evergreen tree native to easter Asia that grows to 60'. Interesting, bright green flowers are approximately 0.5". The tree at the Arboretum has a globose habit. Zone 8. (4" plants)
- evergreen tree to 20'–40'
- plant in sun to part shade
- hardy zone 6
- green flowers in summer
Wisteria ×formosa 'Kokuryu'
black dragon wisteria
Deeply fragrant racemes, blooming all at once in early summer. Does not seem to be as vigorous grower as other Wisterias. Zone 5. (6" plants)
Semi-evergreen shrub with large purple flowers. Seeds came from Korea and the shrub has grown rapidly in our trial garden. Rapidly growing deciduous shrub to at least 8'; red and white sweet-scented flowers, weigela-like, in spring; Hardiness unknown but seems to be hardy in Zone 7. Seeds came from Korea and the shrub has grown rapidly in our trial garden.
- hardy