Decades of research document plants impressive abilities: they communicate with each other, manipulate other organisms, and move in sophisticated ways. Lesser known, however, is that although plants may not have brains, their internal workings are a system not unlike the neuronal networks running through our own bodies. In Planta Sapiens, Paco Calvo, a leading figure in the philosophy of plant signaling and behavior, offers an entirely new perspective on plants worlds, showing how we can use tools developed to study animal cognition to understand plant intelligence. Calvo also illuminates how plants inspire technological advancements, from robotics to AI, and demonstrates that plants have their own agency. If we recognize plants as actors alongside us in the climate crisis, they may just be able to help us tackle our most urgent problems.