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JC Raulston Arboretum e-Update

January 2008

In This Issue

Thanks to all JCRA Supporters

On behalf of the JCRA staff, I want to extend my sincere thanks and appreciation to all of you who supported the JCRA in 2007 through membership, attendance at our programs, volunteer service, financial contributions, and gifts-in-kind. Your support and contributions are vital, and allow us to maintain and enhance our collections, and provide a diversity of excellent educational programs. Thanks for all you do for us. – Denny Werner, Director

Winter Grace

Pinus wallichiana 'Zebrina'A highlight of the winter landscape at the JCRA is the supremely elegant Pinus wallichiana ‘Zebrina’ or variegated Himalayan pine. Long, drooping, blue needles are subtly banded with creamy yellow. When the sun hits it just right, the shimmering foliage looks as though someone draped the tree with leftover tinsel. There are few trees that can match the texture and subtle coloring of this conifer. Slender, 8” long, resin covered cones are formed occasionally, starting pale green and turning brown as they mature. Himalayan pine likes a well-drained, loose soil in a sunny spot. It is a relatively vigorous pine, ours has grown about 25’ since 1988 and now helps anchor the west end of the Mixed Border. During the summer, it adds an air of grace to the riot of flowers and fruit, but during the winter, it takes center stage eliciting comments from all who pass beneath its arching branches. Ultimately, this plant will grow to about 50’ tall under landscape conditions and about 35’ wide. The species hails originally from Pakistan east into China and south to Myanmar where it can grow to 130’. The variegated form, sometimes also listed as ‘Oculus-draconis’, was found in France in the 1870s. Pinus wallichiana ‘Zebrina’ makes an outstanding specimen in gardens with enough room to allow it to develop. The light texture keeps it from overpowering a landscape and the variegation is subtle enough to blend in with its surroundings. – Mark Weathington, Assistant Director and Curator of Plant Collections

Coming Attractions – Highlights of January

Aspidistra elatior 'Asahi'Winter Garden
Aspidistra elatior 'Asahi' – morning sun cast-iron plant
Camellia
'Winter's Dream' – Ackerman hybrid camellia
Helleborus foetidus
'Gertrude Jekyll' – bearsfoot hellebore
Helleborus
  ×hybridus (Ashwood Garden hybrids) – Lenten rose
Iris unguicularis' – winter flowering iris
Mahonia ×media 'Winter Sun' – grapeholly
Prunus mume
– Japanese flowering apricot 

Klein-Pringle White Garden

Acer palmatum [Dissectum Atropurpureum Group] – red lace-leaf Japanese maple
Cedrus atlantica 'Glauca Pendula' – weeping blue Atlas cedar
Fatsia japonica  – Japanese fatsia

Nandina and Witchhazel Collection
Chimonanthus praecox – fragrant wintersweet
Chimonanthus praecox 'Concolor' – fragrant wintersweet
Hamamelis mollis – Chinese witchhazel
Nandina domestica cultivars – heavenly bamboo

Japanese Garden
Mahonia (Yucca Do hybrids) – grapeholly
Phyllostachys nigra
 – black bamboo

Mixed Border
Daphniphyllum macropodum
– false dahpne
Ilex verticillata
'Winter Red' – winterberry holly
Pinus wallichiana 'Zebrina' – variegated Himalayan pine

Perennial Border
Arundo donax 'Variegata' – striped giant reed
Nolina nelsonii – Nelson's blue bear-grass
Opuntia macrorhiza
– western prickly-pear
Stipa tenuissima
 – Mexican feather grass

Other Areas of the Arboretum
Betula utilis 'Kashmir White' – Himalayan white birch – E43b and S06
Corylus avellana
'Contorta' – Harry Lauder's walking stick – T02 and E19b
Edgeworthia chrysantha
'John Bryant' – golden paperbush – C07
Erica
'Furzey' – Darley heath – F04
Lonicera ×purpusii – winter honeysuckle – E09
Poncirus trifoliata 'Flying Dragon' – contorted hardy orange – E19 and W15
Prunus incisa – Fuji cherry – W40
Symphoricarpos ×doorenbosii 'Pink Magic' – Doorenbos coralberry – V06
Ulmus alata 'Lace Parasol' – weeping winged elm – E40

This show is free. Visit often. – Nancy Doubrava, Interpretive Specialist

January Calendar

Plantsmen's Tour – January 8, 2008 (Tuesday) – 1:00 PM – Free

"Texture and Color with Broadleaf Evergreens" led by Mark Weathington, Assistant Director and Curator of Plant Collections. Broadleaf evergreens are a ubiquitous part of the American landscape from foundation plantings to hedges. Take a tour of some of the top performers in the JCRA with a special emphasis on plants that can add some pizzazz to your yard.

Friends of the Arboretum Lecture – January 10, 2008 (Thursday) – 7:30 PM – Free for members, $5.00 for nonmembers

"Chimerism and Variegation in Plants" presented by Denny Werner, Ph.D., Director. Pinwheel petunias. Mottled redbuds. Pink poinsettias with white edges. Zebra grass. Sweetgums with rounded lobes. Variegated plants and chimeras contribute so much to our gardens and landscapes, but how do they arise? Many common examples of variegated plants and chimeras will be discussed so that all can appreciate the interesting biological processes that makes these unique plant forms possible.

Green Roof Demonstration – January 12, 2008 (Saturday) – 10:00 AM-11:30 AM – $10.00 for members, $15.00 for nonmembers

Roofs planted with living plants are the rage in Europe. They are also a great way to save money and preserve the environment in this country. But best of all, green roofs provide one more place to garden! Join Frank Hyman in this hands-on demonstration where participants will learn to modify an existing dog house (or other small structure) so that living plants will thrive there. Frank will bring a dog house with the green roof components precut so that participants can see (and help install if they wish) each step. Steps shown will include: a) calculating materials, b) wood framing for the green roof, c) installing the waterproof liner and other components, d) making the soilless mix, e) choosing and installing plants, f) maintenance issues.

Friends of the Arboretum Lecture – January 24, 2008 (Thursday) – 7:30 PM – Free for members, $5.00 for nonmembers

"Thread Count: The Poetry of Terri Kirby Erickson" presented by Terri Kirby Erickson, Poet. The JC Raulston Arboretum presents a reading of the poems by Terri Kirby Erickson. Terri will read several of her nature and plant themed poems from Thread Count in addition to a few new ones. "Like a time capsule," Terri's "poetry draws in a reader as vividly as a snapshot or a painting, but with descriptions of emotions and environments that are lost in translation with film or paint." – Denise Kasper, Winston-Salem Journal.

Please visit the "Calendar of Events" section on the JCRA Web site for a complete listing of our upcoming programs.

Recent Members Only Additions

One new video was added to the Members Only section on the Arboretum's Web site in December and is now available for viewing. It includes the following:

Content in the Members Only section is password protected and is only available to Arboretum members. In order to access these special features, members will need to know the password that was printed on the label of their latest Friends of the Arboretum Newsletter or included at the bottom of the e-mail with the latest monthly JCRA e-Update. The user name needed to log in is always "jcra."


JC Raulston Arboretum e-Updates are published electronically every month for everyone interested in the Arboretum and are e-mailed to the Arboretum's members. If you are a member and need to update your contact information or wish to be removed from this mailing, please contact Chris Glenn.

© January 2008, JC Raulston Arboretum


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