Eike Lüdeling, the department head of horticultural sciences at the University of Bonn, stated, "It turns out that many of these seedlings, if you don't do this well or if people do it who don’t really care about those trees, then they all just die quickly. Sometimes it’s probably a better idea to plant fewer trees and really take care of them." Danny Cohn, the director of public relations for the Arbor Day Foundation, addressed these concerns in saying that "the partners who work with the organization are all required to have plans to help their trees thrive."[39]