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TheThe GardenGarden NewsNews The University of Nebraska - Lincoln Botanical Garden and Arboretum Spring 2002 Volume 8, Issue 2 The Garden: special plantings & gardens on City & East campuses including Maxwell Arboretum Spring Affair 2002 Gardening: America’s Pastime Spring Affair Plant Sale: Saturday April 20 9 a.m. to 4 p.m. State Fair Park Free Admission In this Issue: by Carol Bom, event, you can request a volunteer form from ♦Spring Affair Landscape Services Staff Assistant 2002 p.1 the same number. We need over 150 ♦From the volunteers to run this event. We begin on Director p.2 Thursday with the delivery and set up of ♦ From Maxwell Arboretum p.3 The annual Preview Party is set for plants, and continue through Friday setting ♦Education Friday, April 19 from 6:00 – 9:00 p.m. up for the Preview Party and the plant sale Programs p.4 on Saturday. We have a great core of ♦ Reservations ($25 per plate) are pouring in, Internship volunteers with new people signing up each Program p.5 so if you haven’t made yours yet, please mail ♦Garden Friends it in as soon as you can – seating is limited. year. Ann. Mtg. p.5 A reservation form is available in the If you have access to the World Wide ♦"Meet the Weeds" Web, you may also learn a great deal about p.6 newsletter or on our web site: http:// ♦Garden Tidbits busfin.unl.edu/unlbga Spring Affair there. Our web address has p.6 This year’s event promises to be changed (see first paragraph) and click on ♦Calendar p.7 the Events link. There you will find links that ♦Tree Trivia p.7 another great one. There are a great variety of programs that go along with the theme. include Spring Affair News, volunteer Printed on The topics range from using old-time favorite information, plant lists, vendor and advertiser recycled paper plants in today’s gardens, the garden information, and much more. We try to reflected in quilts, gardening with wild include new items each year, so be sure to flowers, a unique look at butterflies and bookmark it and go back periodically to check plants, birds and berries and gathering and it out. We plan to include the volunteer harvesting of plants. Our panelists for survey after the event. “Anything and Everything” include Fred Spring Affair is co-sponsored by UNL Baxendale, Harlan Hamernik, and Bob Landscape Services, the Nebraska Statewide Gilmour. Arboretum, and State Fair Park. Mark April 19 and 20 on your calendars and enjoy the UNLBGA is an If you have not received a copy of the affiliate site of the Spring Affair News yet, please call the time spent with fellow gardeners, great Landscape Services office at 402-472-2679. speakers and educational topics, and other If you would like to volunteer at this year’s plant enthusiasts. See you there! and curator of the Alice Abel Personnel Updates Arboretum at Nebraska Wesleyan University for 17 Welcome to: years. Before that, she was a ♦ Dale Ekart, Recycling & Solid Waste Resource Mgr. landscape supervisor at UNL Landscape Services. She Welcome Back to: earned her BS in Horticulture ♦ Twyla Hansen, Education Project Asst., formerly from UNL in 1979. Twyla is an Landscape Supervisor 1980-82 Associate Fellow of the Center for Great Plains Studies and has Good-bye & Good Luck to: ♦ Kevin Leonard, Maintenance Mechanic-Irrigation many other credits to her name, including past Board member of the Nebraska Statewide Arboretum. In addition, Twyla has won numerous writing Welcome Back Twyla Hansen awards, honors and fellowships, and has published three books of poetry: Sanctuary Near Salt Creek, In our by Kay Kottas, Education Mgr. Very Bones and How to Live in the Heartland. I am Twyla Hansen, horticulturist, poet, and all-around great very pleased to have the opportunity to work with Twyla. person has joined me in the Education area as a part-time She has been a tremendous help since her arrival in temporary project assistant. Twyla was grounds manager January. Please welcome Twyla when you see her. From the Director by Robert Hensarling, Director, Landscape Services, UNLBGA plantings, we will keep in mind the prevailing sentiment Howdy! on campus with security, accessibility and aesthetics providing guidance and direction for our departmental I would like to think operations. that we are finally through with On another note, we will begin a new era with the way winter; however, I we approach campus recycling efforts. Beginning March realize I’m not in 1, 2002, we have combined our solid waste and recycling Texas anymore. If operations together in order to provide a more efficient you look carefully at delivery of service some of the trees throughout campus. beginning to bud In doing so, we have throughout our Robert Hensarling hired Dale Ekart as landscape you will our Recycling and see evidence our mild winter and pending spring. Our Solid Waste Resource crews have had an extended period of time to do Manager. Dale pruning of a variety of trees and shrubs on both campus formerly served as locations. While most of this work was conducted as UNL’s Recycling general-purpose maintenance, some of the effort was Contractor and has in response to security issues related to overgrown been on campus in plant material. that capacity since 1993. Dale brings a Dale Ekart Mass plantings of large trees have provided a grand, wonderful sense of green composition for campus for many years. Some organization and proactive environmental enthusiasm to areas of campus with plantings of mature trees and our department and will serve campus well. If you see shrubs are being assessed for their continued viability. Dale Ekart around please say hello and welcome him As we move forward with the basic idea of sustainable “officially” to Landscape Services! Spring 2002 page 2 Notes From Maxwell Arboretum by Emily Levine, Grounds Supervisor, Maxwell Arboretum Although most visitors to Maxwell Arboretum are rightly impressed by the trees, aware of the Vine Arbor, or familiar with the Viburnum Collection, many gems—especially shrubs—are hidden within its boundaries. In this issue I’d like to introduce visitors to two interesting shrubs not often seen in local landscapes: Rhodotypos scandens (Black Jetbead) and Dirca palustris (Leatherwood). Rhodotypos scandens Dirca palustris L. (Thunb.) Mak. Black Leatherwood, Wicopy Jetbead Rosaceae Thymelaeaceae Monotypic genus Deciduous shrub (only one species in the Origin genus); eastern United States Deciduous shrub Introduced 1750 Origin Zone 4-9 Japan, Central Asia Branches light Introduced 1866 brown to olive, small Zone 4-8 white lenticels, aromatic when bruised, very flexible and tough Branches opposite, greenish brown to brown, scaly at (hence the name) base Leaves alternate, simple; elliptic to obovate, obtuse, Leaves opposite, simple, prominently veined, sharply cuneate, entire; glabrous above, pubescent underside; 5-10cm.; bi-serrate, 4-8cm., bright to dark green turning yellowish in fall light green, yellow in fall Flowers perfect, singly at twig end; white, four petaled, Flowers perfect, small, light yellow; usually 3-4 per 4-5cm., May-June inflorenscence; March-April Buds greenish with brown tips, ovoid, glabrous Buds hidden by petiole bases; conical with 4 hairy Fruit drupe; glossy, black, hard, ellipsoidal, Oct. into scales; no terminal buds following season (very persistant), .5cm, in clusters at twig ends, Fruit drupe; light to yellow green; 6mm or larger; usually 4 per cluster HIGHLY TOXIC, may be fatal if eaten, ovoid; June-July contain amygdalin Height 1-2m. Height 1-2m in cultivation, spread greater than height, Habit rounded, dense, thickly branched much larger in the wild Growth Rate slow Habit mounded, loosely branched, ascending/ Pests few; basically trouble free arching branches Culture shade, moist areas; widely adaptable to soils, Growth Rate medium to fast light, and climate Pests few, basically trouble free Notes The strong, flexible braches were used by Culture easy to grow; very tolerant of crowding, native peoples for baskets, bowstrings, rope, fishing line, etc. pollution, varying pH and soils, full sun to heavy shade Dirca, mythical spring near Thebes; palustris, refers to its wetland habitat. The arboretum’s Jetbeads are located in a bed just to the Our Leatherwood is located along the east edge of the southwest of the bridge. They receive no special care Vine Arbor at about the midway point next to a Japanese beyond occasional pruning. Last year some of the Tree Lilac and some azaleas. Although neither its blossoms branches on two of the plants withered and died. No cause nor fruit are showy, this little shrub has a beautiful form was found. Given the poisonous properties of the fruits, and the structure of its branching is so delicate and intricate please be sure to supervise young children in the vicinity. that it makes a unique contribution to the landscape. ****** Early to mid-spring, before Flemming Slope and the Yeutter Gardens are in full bloom, is a wonderful time to visit Maxwell Arboretum. Be sure to check out the Rhododendron Collection and the Lilac Collection. Tours of both collections are scheduled. Early shade–loving perennials can be found hidden in the viburnums and other spots. Finally, in addition to those scattered throughout the Arboretum, recent bulb plantings can also be found along the Loop Road south of the Gazebo and along the front edge of the lilacs. Come enjoy the first signs of spring! Spring 2002 page 3 UNLBGA Education Programs by Kay Kottas, Education Mgr. Winter Programs Spring Programs Educational Programs at UNLBGA have Many more programs are coming your way. You blossomed! So far this year, (January-March) we have will definitely want to check out our calendar list (see already had more programs than the last 2 years p.7).