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 17, 2025 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 2, 2025.

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.

1997 Plant Selection

Items 1–25 of 131


Acer palmatum
Japanese maple

Seedlings from the various trees in the Arboretum. Something good could come out of these. Zone 5; sun to light shade.

  • deciduous tree to 18'–22'
  • plant in sun to light shade
  • hardy
  • red flowers in spring

Acorus gramineus 'Ogon'
golden sweet flag

Likes wet conditions; grass-like hardy perennial. All hardiness zones; sun.

  • herbaceous perennial to 15"
  • plant in sun to light shade
  • hardy to zone 5

Aesculus glabra var. glabra
Ohio buckeye

Tree; 20'–40'; greenish yellow flowers in May. Zone 3–7.

Agave Collection
century plant

(Will get 3 of the 5 choices) Agave deserti—Grey green leaves 18" by 2" wide; from Sonoran Desert; flowers yellow; Zone 8. Agave falcata – very narrow leaves; 18" width; hardiness to at least 0F. Agave lechugilla – White edged leaves; Texas native; hardiness untested, probably Zone 7. Agave lophantha – Leaves marked with white; seed collected in San Jose; Zone 7.

Ampelaster carolinianus
climbing aster

A woody vine: do not cut it down in winter. Typical aster flowers of pale mauve, pink all of October and most of November; fragrant; 8' tall with support; Zone 7 maybe 6.

  • woody vine to 12' w/support
  • plant in sun
  • hardy to zone 6
  • rosy pink flowers in fall
  • butterfly/pollinator friendly
  • flowers are fragrant

Aquilegia Collection
columbine collection

Aquileqia caerulea – Perennial with blue-white, long-spurred flowers in spring to 2'; sun to light shade. Herbaceous perennial Zone 4. Aquilegia skinneri – Yellowish-green petals with 2" long red spurs; 3'

  • hardy

Aralia racemosa

East coast native herbaceous perennial, to 6' without the prickles and spreading habit of its woody relatives. Dense panicles of greenish white to brownish purple flowers followed by dark fruit; Zone 4; shade.

Arum italicum subsp. italicum
Italian arum

Tropical looking foliage all winter; glossy arrow shaped leaves veined with cream. Summer dormant. Winter sun, summer shade under deciduous shrubs and trees; Zone 6.

  • herbaceous perennial to 1'–1.5'
  • plant in sun to part shade
  • hardy
Arum italicum subsp. italicum

Aucuba Collection
Japanese aucuba

Aucuba japonica f. longifolia – An elegant form of this well known evergreen shrub with leaves much longer than wide; shade. Aucuba japonica – Self fruitful cultivar of this well known handsome broad leafed evergreen shrub. Fruit are red, about the size of a small olive; shade. 4'–6'; Zone 7. Will receive one of each.

  • evergreen shrub to 5'–8'
  • plant in shade
  • hardy to zone 7b

Baptisia Collection*
wild-indigo collection*

B. australis – showy spikes of blue in May; 3'. B. megacarpa – Showy fruit in late summer. Large inflated apple green pods. Modest cream flowers. B. minor – Shorter, though still very showy, version of B. australis. B. pendula – Like a white version of B. australis. Striking upright spikes of white 3'–4' ; the fruit are pendulous. B. sphaerocarpa – Brilliant acid yellow flowers in spikes; 30". Will receive 4 of the 6.

Betula nana

2'–4' tall shrub; native to Northern North America and Europe, usually moist areas; Zone 1?

Buddleja salviifolia
South African sage-wood

Fragrant pale lilac to white flowers in autumn to early winter. Would probably make an excellent houseplant for cool sunny spot; shrub or small tree 3'–15'; Zone 8.

  • hardy

Buddleja ×weyeriana 'Sungold'
Weyer's golden butterfly bush

A yellow flowered, large (8') vigorous grower, not quite as floriferous as one might hope. Highly approved by butterflies; Zone 6?

  • hardy

Buxus Collection
boxwood

Buxus sempervirens 'Pyramidalis' – A boxwood with amazingly narrow pyramidal growth habit. Plants at the Arboretum are 7' tall and 3' wide at base, tapering steadily upward. Zone 7, sun to light shade. Buxus sinica – New rare species from China with larger, broader evergreen foliage than common boxwoods. Sun with light winter shade in colder climates to prevent winter scorch; Zones 6–9.

  • hardy

Callicarpa bodinieri var. giraldii

Profuse fall display of brilliant purple-violet fruit on this easy deciduous Asian plant. Sun, light shade, 5'; Zone 6.

Callicarpa dichotoma f. albifructus
white beautyberry

White fruited variety of another Asian beauty berry. Indispensable for fall show. Sun to light shade, 5'–6', Zone 5.

  • shrub to 4'–6'
  • plant in sun to shade
  • hardy to zone 5
  • pale pink flowers in summer

Callistemon Collection
Bottlebrush

Callistemon 'Woodlander's Red' – Red flowers on evergreen shrub to 12'; Zone 7. Callistemon citrinus – Lemon scented with crimson flowers; evergreen shrub to 15', Zone 8. Callistemon sieberi – "Alpine Bottlebrush" – Native to mountains of southeastern Australia; perhaps the hardiest; 15'; pale yellow. Will receive two of the three.

  • Evergreen shrub to 8'
  • plant in sun
  • semi-hardy
  • red flowers in spring - summer

Calycanthus chinensis
Chinese wax plant

Asian counterpart to our beloved sweet Betsy or Carolina allspice, Calycanthus floridus. Their growth habits are very similar, though Calycanthus sinensis flowers are more like a single white camellia; sun or light shade; Zone 6.

  • shrub to 6'
  • plant in sun to part shade
  • hardy
  • white with pink tinge flowers

Calycanthus floridus
common sweetshrub

Native deciduous shrub to 9' beloved for its usually fragrant through curious maroon sea anemome-like flowers; sun to light shade, Zone 4.

  • deciduous shrub to 6'–9'
  • plant in sun to part shade
  • hardy
  • maroon flowers in early summer

Calycanthus floridus 'Athens'
yellow common sweetshrub

Yellow green flowered cultivar of above. Some of these are seedlings and might not come true.

  • flowering shrub to 4'–6'
  • plant in sun to shade
  • hardy
  • yellow flowers in sun

Camellia ×vernalis 'Hiryû'
vernal camellia

Crimson red single to semi-double flowers in fall. Closely resemble C. sasanqua in flower, growth and hardiness; Zone 7; 15'.

  • evergreen shrub to 15'
  • plant in sun to part shade
  • hardy to zone 7b
  • red flowers in winter

Camellia ×williamsii 'Golden Spangles'
variegated Williamsii camellia

Beautiful gold-green centered leaves. Pink single flowers in late winter, light shade; Zone 7.

  • to 8'
  • plant in sun to shade
  • hardy

Camellia ×williamsii 'Mary Christian'
Williamsii camellia

Single pink flowers; Zone 7.

  • herbaceous perennial to 8'–12'
  • plant in shade
  • hardy
  • dark pink flowers in winter to early spring

Campanula trachelium var. alba

2'–3' tall herbaceous perennial with white bell-like flowers. Eurasia, naturalized in North America. Zone 5? Sun to light shade.

Carpinus orientalis
oriental hornbeam

From the "Orient" of old: southeastern Europe and Asia minor. Deciduous shrub or tree to 20'–30'; Zone 5.

  • deciduous perennial to 15'–25'
  • plant in full sun to part shade
  • hardy

Items 1–25 of 131