Matt Taylor, Michael Evans, and Jeff Kuehny

Matt Taylor is research horticulturalist, Longwood Gardens, mtaylor@longwoodgardens.org. Michael Evans is professor, University of Arkansas, Department of Horticulture; mevans@uark.edu. Jeff Kuehny is professor, Louisiana State University, Plant Environmental and Soil Sciences; jkuehny@agcenter.lsu.edu.