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JC Raulston Arboretum e-Update

November 2007

In This Issue

Nepal Holly

Ilex integra 'Green Shadow'One of the most underused of the evergreen hollies is the truly aristocratic Nepal holly, Ilex integra. This pyramidal tree to 35' becomes somewhat rounded with age. The glossy, nearly black foliage provides the perfect backdrop for the large (to 0.5") round orange-red fruits borne in profusion on female plants. The leaves are entire with no spines or are shallowly toothed near the tip. It is found in Japan, Korea, and eastern China growing in woodlands on low mountains. Nepal holly makes an excellent specimen or hedge into Zone 6 gardens. There are some reports the English holly (Ilex aquifolium) may serve as a pollinator. I have seen several forms in the nursery trade and am not convinced that all are the true species. Several appear to have the influence of I. pernyi or I. aquifolium.

As good as the species is, some of the cultivated forms are high on my list of outstanding evergreens. A highlight of my recent trip to Japan was seeing both male and female forms of the gold leaf selection 'Ogon'. The foliage of this cultivar emerges electric yellow and retains good color for most of the summer, lightening to bright chartreuse. Interesting to me was the fact that all the female forms appear to be more upright growers than the rounded male selections of 'Ogon'. It seems that most of what is grown in the United States is the female form. Long hedges of this colorful shrub are so bright, you could line runways with them and land planes during blackouts. Another colorful cultivar is 'Green Shadow'. Our selection at the Arboretum was received in 2000 and has grown through the roof of the Lath House. This Japanese form was brought to the United States by Barry Yinger and given to the JCRA by Dan Hinkley, former owner of Heronswood Nursery. The two-tone green leaves are broadly edged in creamy white. It has proven to be a vigorous, upright grower and deserves a place in any garden. Other selections mentioned in the literature include 'Bancroft' a heavy fruiting form, 'Bisexual' a self fertile selection, and 'Xanthocarpa' with yellow fruits. – Mark Weathington, Assistant Director

Volunteer Opportunities

The Arboretum has many activities in which volunteers can use their talents. Currently, we have the following openings which we would like to fill immediately:

Plant Labelers – Work on labels, maps, and checklists for plants in the various gardens.

Tour Guides – Give guided tours to scheduled groups or Sunday tours to the general public, usually in the spring and fall.

Visitor Center Staff – Provide general information to visitors; ensure the Visitor Center has needed brochures and supplies.

Fund Raising Support – Provide administrative assistance to the associate director of membership and fund-raising events for special events and other fund-raising activities.

If you would like to help, please contact Barbara Kennedy, at (919) 513-7004 or – Barbara Kennedy, Volunteer Coordinator

November Calendar

Friends of the Arboretum Lecture – November 1, 2007 (Thursday) – 7:30 PM – Free for members, $5.00 for nonmembers

"Rain Gardening" presented by Helen Kraus, Ph.D., Department of Horticultural Science, NC State University. Want to make the most of rainfall when it comes? Come and learn about the mechanics of how to design and build a rain garden. What is a rain garden? It is a garden designed to capture, use, and filter rain water runoff preventing it from entering the stormwater system. Rain that enters storm drains must be treated before it can be used again. Are rain gardens ugly? Nope! They are beautiful. In fact, you may have seen and admired one and not even known it.

Plantsmen's Tour – November 6, 2007 (Tuesday) – 1:00 PM – Free

"Fabulous Fruits" led by Mark Weathington, Assistant Director and Curator of Plant Collections. As the leaves drop from the trees and shrubs in the fall, fruiting plants take center stage. Learn which fruits attract wildlife while we wander through the seasonal display of berries, seed pods, and cones.

Garden Writing Class – November 10, 2007 (Saturday) – 10:00 AM-4:00 PM and November 11, 2007 (Sunday) – 1:30 PM-4:30 PM –$100.00 for members, $140.00 for nonmembers ($40.00 membership included)

"Garden Writing for Publication or Personal Enrichment" presented by Pam Baggett, Freelance Garden Writer, Lecturer, and Photographer. Eloquent garden writing is a pleasure to produce, whether you want to publish or simply enrich your garden experience through journal-keeping. Combining lecture and in-class writing exercises, we'll explore how to create lyrical and compelling prose. We'll discuss the fundamental building blocks of beautiful sentences and paragraphs; an expanded language of color and texture; how to take your work from first draft to finished product; and the basics of publication, including how to successfully write and pitch article proposals to editors.

Friends of the Arboretum Lecture – November 15, 2007 (Thursday) – 7:30 PM – Free for members, $5.00 for nonmembers

"Growing Hardy Citrus in Zones 7b & 8" presented by Keith Endres, Ecologist, Landscape Characterization Branch, U.S. Environmental Protection Agency. With warmer winters the last decade, there has been a surge of interest in hardy citrus. By selecting fascinating new varieties and old cultivars developed by the USDA more than a hundred years ago, gardeners in much of the Southeast can experiment with their microclimates and grow some type of citrus. Not all varieties will produce commercial quality fruit, but many will be beautiful ornamental plants with culinary uses – not to mention a great conversation piece.

2007 NCNLA Excellence in the Landscape Awards – November 29, 2007 (Thursday) – 7:00 PM – Free

7:00 PM – Presentation
"Sustainability and Landscaping"
Jill Coleman, Landscape Architect, Project Manager, Facilities Planning and Construction, University of North Carolina-Chapel Hill
8:00 PM – Awards ceremony

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

Members Only Additions

Several new videos and a newsletter were added to the Members Only section on the Arboretum's Web site in October and are now available for viewing. They include 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. To remove yourself from this mailing, please write Christopher Todd Glenn.

© November 2007, JC Raulston Arboretum

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