Plant “intelligence” is a controversial idea among biologists. Shoddy but widely reported experiments in the 1970s claimed to show humanlike behaviors in plants, such as enjoying Beethoven and responding to polygraph tests. Scorn for this New Age froth meant that, until relatively recently, studies of animal-like qualities in plants were taboo among respectable plant scientists. Now scientific discoveries have reignited debate. Through Schlanger’s careful reporting, we come to understand multiple perspectives rather than being bullied into one camp or another. Schlanger believes plant biology is a “case study” of a scientific revolution in progress. Conflict among competing ideas is, she shows, a necessary part of paradigm change.