ecological gardening efforts is the inclusion of native plants in landscape design ( Uren et al., 2015 ). Research suggests that gardens composed of native plants are associated with higher native insect β-diversity (the change in species diversity between
Aaron G. Anderson, Isabella Messer, and Gail A. Langellotto
Mary Hockenberry Meyer, Cynthia Haynes, Denise Ellsworth, Sarah Ellis Williams, Celeste Welty, and Karen Jeannette
Horticulture IPM Working Group developed an online learning module entitled, “Introduction to Diagnostics for Master Gardener Volunteers: Approaches to Plant Pest Diagnosis.” The goal of the module was to increase EMG confidence and knowledge in the diagnostic
Robert F. Brzuszek, Richard L. Harkess, and Lelia Kelly
The use of native plants is increasing nationally among gardeners and is an emerging niche market for the green industry ( Hamill, 2005 ). The definition for a native plant is not universally accepted, which has resulted in some confusion. The U
Robert F. Polomski, Douglas G. Bielenberg, Ted Whitwell, Milton D. Taylor, William C. Bridges, and Stephen J. Klaine
constructed wetlands, specifically saleable horticultural plants with remediation potential. Similar to obligate wetland species, aquatic garden plants also thrive in waterlogged environments and offer the potential benefits of phytoremediation and economical
Heather Kalaman, Gary W. Knox, Sandra B. Wilson, and Wendy Wilber
, birds, beetles, and bats. Table 2. Master Gardener participants survey results showing overall interest in learning more about pollinator-friendly plants and their perceived and tested knowledge of identifying pollinators and pollinator-friendly plants
Neil Anderson, Peter Ascher, Esther Gesick, Lee Klossner, Neal Eash, Vincent Fritz, James Hebel, Stephen Poppe, Judith Reith-Rozelle, Roger Wagner, Susan Jacobson, David Wildung, and Patricia Johnson
Chrysanthemums ( Chrysanthemum × grandiflora Ramat.; = Dendranthema × grandiflora Tzvelv.) are popular cut flowers, potted flowering plants, and perennial garden favorites worldwide with thousands of cultivars available ( Anderson, 2006
Susan L. Hamilton
Many new plants and varieties are introduced into the market every year. Little information is generally available about the landscape performance of these plants. To take the guesswork out of their landscape performance in the Tennessee region, the Univ. of Tennessee Institute of Agriculture (UTIA) Gardens were established. Started in 1983 as an All-America Selections (AAS) Test Garden, on less than a quarter of an acre, the UTIA Gardens have grown to 5 acres and now include plant introductions from 25 commercial seed and plant companies. An average of 550 summer and winter annuals are evaluated annually in addition to an assortment of bulbs, perennials, herbs, groundcovers, ornamental grasses, aquatics, trees, and shrubs. Because of the volume of plants, evaluation criteria are in conjunction with industry requests and are not always replicated. In addition to university support, the gardens receive revenues from the sponsoring commercial seed and plant companies, the Tennessee green industry trade associations, a “Friends of the Gardens” support group, and gifts. As a result of the herbaceous plant evaluation program, the UTIA Gardens have grown to be a significant resource for the university, community, and green industry. A variety of university departments use the gardens in their teaching; community groups, including schools, tour and use the gardens; and open houses and field days assist commercial growers and landscapers in remaining current on new plant introductions and their performance.
H. Brent Pemberton and William E. Roberson
The East Texas Bedding Plant Pack and Garden Performance Trials began several years ago at the Texas A&M University Agricultural Research and Extension Center at Overton (Overton Center) with the goal of providing information on greenhouse and field performance of bedding plant varieties to the local bedding plant industry and consumers of these products. The program began with local trials that have now expanded in scope with the Smith County Master Gardeners Association playing an integral role in performing the trials. Entries are received from most of the major ornamental seed companies doing business in the United States giving the regional industry access to the only comprehensive greenhouse performance trials in this part of the country. Performance evaluation data is important to this industry since it has a wholesale value of over $500 million in the northeast Texas region, of which over $100 million is bedding plant production. The field performance trials are now replicated at the Overton Center, the Dallas Arboretum and Botanical Garden (Dallas Arboretum) and the Texas A&M University Agricultural Research and Extension Center at Dallas (Dallas Center), giving over 5 million consumers in the northeast Texas region the opportunity to see how promising new plants from all over the world perform in the local climate. Plants that grow well in this climate have the potential to reduce inputs needed for production and use in the home or commercial landscape. Many of the top performing varieties from the bedding plant trials are also chosen to be part of the Coordinated Education and Marketing Assistance Program (CEMAP), a statewide testing program headquartered at the Dallas Center in which entries vie for designation as Texas Superstar plants. The comprehensive benefit of the East Texas Bedding Plant Pack and Garden Performance Trials is the link between the rural bedding plant producers and the urban consumers which serves as a basis for improving the quality of life for the citizens of Texas.
William Klingeman, Charles Hall, and Beth Babbit
Though genetically modified (GM) ornamental cut flowers are already available commercially, U.S. academics and Green Industry growers have not assessed consumer perception about GM ornamental plants for landscape use. Because we must make inferences from studies of GM foods, we risk misunderstanding and alienating stakeholders and clients. If we misjudge the end-user, we jeopardize the market for future GM ornamental plant introductions. To address this gap, we surveyed Tennessee Master Gardener Volunteers in 2004. Respondents (n = 607) revealed that concern and belief about GM ornamental plants parallel U.S. expectation about GM foods. Average Master Gardener volunteer responses predict that GM ornamental plants would provide only slight benefits to both the environment and human health once used in the landscape. Compared with non-GM plants, GM ornamental plants are expected to be about the same or less invasive in the landscape. While all types of GM ornamental plants were expected to provide slight benefits, plant types were perceived differently with male respondents expecting perennials to yield the most environmental benefits and females indicating grasses and turf. Men and women also differed in their relative acceptance of GM ornamental plants, if genes were added from different types of organisms to achieve a genetic transformation of an ornamental shrub. Our results suggest that academic outreach and Green Industry marketing to promote new GM plant products should emphasize attributes of benefit, rather than GM transformation processes. Regardless, about 73% of TN Master Gardener respondents reported interest in buying GM ornamental plants if sold commercially, but the majority advocated a requirement for GM plant product labeling at point-of-sale.
W eeds in my garden : O bservations on some misunderstood plants . Charles B. Heiser. 2003. Timber Press, The Haseltine Building, 133 S.W. Second Ave., Suite 450, Portland, OR 97204. 247 p. Color photos and line drawings. $22.95. 0-88192-562-4