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.

1998 Plant Selection

Items 1–25 of 153


Acer oblongum
flying moth maple

This attractive, fast-growing, medium sized (20'-50') tree was acquired by the JCRA in 1996 from seed collected in China by our friends at the University of Nebraska. Despite its huge native range (Nepal all the way east to central China), little is known about this maple in the United States. Although European books indicate that this species is evergreen and tender (Zone 9), it has been decidedly deciduous for us, even bearing blazing red fall color in 1998 (but never since) and has never suffered any cold damage in typical Zone 7 winters. Smoothleaf maple bears attractive sage-green to lustrous, dark green leaves throughout the summer, these being glaucous white underneath. The bark is smooth and striated, making for a most attractive tree. Our two specimens have averaged 4' of growth per year. The plants offered here are raised from seed collected off of our specimens growing at the JCRA.

  • deciduous tree to 20'–50'
  • plant in sun to part shade
  • hardy to zone 7

Adina rubella

This large shrub has 1'' long, glossy, evergreen, elipitic leaves, with summertime, spherical flowerheads like the native buttonbush (Cephalanthus occidentalis), grows to 10' in sun. Zone 7. Adina rubella 'Purple Flower' is similar but has purple flowerheads. You will receive one of each. (3" plants)

Agarista populifolia
Florida leucothoe

This large spring flowering use to be named Leucothoe populifolia. It is an evergreen shrub and would make a great screen for shady conditions to part sun, 10' tall, and has white flowers in the spring. Zone 6. (2' plants)

  • Evergreen shrub to 10'
  • plant in part sun to shade
  • hardy to zone 7
  • white flowers in spring
  • butterfly/pollinator friendly and deer resistant
  • native

Allium stellatum
prairie onion

An onion native to the Great Plains of the Midwest, this species has surprisingly been absent from cultivation. Our seed, obtained in 1998, originated from Missouri, and we have been impressed with the garden performance of the plants ever since. In summer, dense heads of lavender-pink flowers on 12"–18" very sturdy scapes appear, standing atop the sea-green leaves. Bulbs multiply quickly, with clumps of 20+ bulbs/bulblets being produced only after two seasons in the ground. Hardy through Zone 5. (6" plants)

  • to 12"–18"
  • plant in sun to part shade
  • hardy

Arbutus unedo 'Compacta'
compact strawberry tree

This excellent cultivar of the somewhat familiar "strawberry tree", a European evergreen member of the Ericaceae (heath family) native from southwest Ireland south to Portugal, and all the way eastward across the Medterranean to Asia Minor. With a broad geographic range such as this, one would expect this plant to be quite adapted to a range of growing conditions, and to no great surprise, it has prospered here in Raleigh for decades. 'Compacta' represents a slower-growing cultivar of this species, with plants reaching 5' tall or less. Expect it to bear lovely, glossy, evergreen foliage; off-white urn-shaped flowers in late fall through winter, and bright red, strawberry-like fruits in late winter to spring. Hardy through Zone 7. Shade to sun.

  • hardy

Ardisia
coralberry

Another evergreen shrub from Cliff Parks. This one is an unknown species. Also has attractive foliage, and unknown hardiness. (3" plants)

  • evergreen shrub
  • plant in part sun
  • hardy to at least zone 8a
  • red fruit in fall

Ardisia shuilensis

An evergreen shrub new to the United States from Cliff Parks, Camellia Forest Nursery, Chinese collections. Very attractive foliage, hardiness not yet known, we are guessing Zones 7–8. (3" plants)

Arisaema
cobra lily and Jack-in-the-pulpit

Arisaema ringens, Arisaema consanguineum, and Arisaema triphyllum. These are species of the "Jack in the Pulpit". A. ringens and Arisaema consanguineum are the Asian species and A. triphyllum is our native species. You will receive two bulbs. Please circle your preference and we will try to give you your choices.

  • hardy semi-hardy
Arisaema

Aristolochia tomentosa

Native deciduous vine with leaves to 8", it is the larval food of pipe vine swallowtail , it's odd shaped flowers give it it's common name, Zone 6 at least. (4"–6" plants)

Aronia ×prunifolia
purple chokeberry

Native deciduous shrub with showy purple black fruit and good fall color, sun to light shade, to 8'. Zone 5. (3" plants)

  • hardy

Berberis wilsoniae var. stapfiana
Wilson barberry

This semi-evergreen barberry shrub grows to 3'. It has blue green foliage and an arching habit, yellow flowers in the summer, sun. Zone 7 at least. (10–12" plants)

  • semi-evergreen shrub to 3'
  • plant in sun
  • hardy to zone 7 at least
  • yellow flowers in summer
  • blue-green foliage

Betula

We originally received this as Betula transhanica, but we cannot find any information on this species in our references. Seed was from the North American Rock Garden Society. Assuming it's from China. (3" plants)

Betula 'Crimson Frost'
purple-leaf birch

Hybrid birch with purple foliage. (10" plants)

Betula humilis

This is a smaller growing birch species that's similar to the beautiful white barked paper birch, unlikely to do well here in the Piedmont but perhaps will do well in the mountains. Zone 3. Sun. Native to Saskatchewan to Alaska. (12" plants)

Buddleja crispa
curly butterfly bush

Fuzzy white leaves are its attraction. Fragrant lilac flowers in summer. Native to the Himalayas. Zone 9.

  • hardy

Buddleja davidii
butterfly bush

These medium to large shrubs attracts the butterflies. We have several varieties to choose from. We have limited quantities of some varieties so we are asking you to circle the two you would most like to have. Here are the different varieties to choose from: 'Cornwall Blue', 'Moon Shadow', 'Nanho Blue', 'Nanho Purple', 'Summer Rose', and 'Miss Ellen'.

  • hardy

Buddleja ×weyeriana
Weyer's golden butterfly bush

This is a hybrid between the common butterfly-bush, B. davidii and the yellow-flowered B. globosa. Offspring look like yellow B.davidii and are large vigorous 8' shrubs. We have two varieties to choose from 'Honeycomb' and 'Moonlight'. You will receive one of these so please circle your preference.

  • hardy

Bupleurum fruticosum
thoroughwax

Evergreen to semi evergreen shrub to 6', numerous umbels of small greenish yellow flowers. Zone 7?. Native to southern Europe. This plant will count as five plants. (12" plants)

  • to 5'–8'
  • plant in sun to light shade
  • hardy

Callistemon macropunctatus
scarlet bottlebrush

Flowers are 4" long, bottlebrush-like, with 1" red stamens, 12' evergreen shrub. New growth is hairy and silky. Hortus says Zone 9, but other Callistemons have been hardy at the Arboretum. Sun. Native to Australia . (12" plants)

Callistemon rigidus
stiff bottlebrush

Flowers and hardiness similar to other Callistemons. Native to New South Wales, Australia. (12" plants)

Calycanthus occidentalis
western sweetshrub

Our native, East coast sweet Betsy's California cousin, they could be identical twins. It has been hardy here at the Arboretum (Zone 7), sun or shade. Native to California. (10" plants)

  • hardy

Camellia japonica 'Jacks'
Japanese camellia

This Camellia is often referred to as 'Broadrose' but is often seen as 'Jacks'. The flower is deep rose, formal double. Anne Clapp says it is an excellent garden plant. For the shade. Zone 7. ( 4"–8" plants)

  • evergreen shrub to 6'
  • plant in light shade
  • hardy to zone 7
  • rose flowers in spring
  • lovely flower form

Carex phleoides

New to us, this sedge has grass like foliage, herbaceous perennial.

Carpinus betulus 'Fastigiata'
upright European hornbeam

Narrow growing (fastigate) cultivar of this deciduous small to medium tree. A striking vertical accent year round that would make a great street tree. Zone 5. Sun. Native Europe to Iran. (10"–12" plants)

  • hardy

Castanopsis sclerophylla
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)

  • semi-hardy

Items 1–25 of 153