People do respond to the plants in their environment.
Although most people do not recognize it, we often think in terms of plants. Our language, history, art, and literature are filled with plants as metaphors, similes, icons, and symbols. But the research to document these responses, to understand them, and to apply them to the use of plants is in its infancy. What little of it there is has been focused mostly on plants in natural settings. We, as an industry, need to encourage a much wider group of professionals to undertake related research and work with us and with government agencies.