With its origins in systems ecology and emerging interest in the inter-disciplinary examination of the governance of linked social-ecological systems, social-ecological resilience offers a field of scholarship of particular relevance for planning at a time when global ecological challenges require urgent attention. This article explores what new conceptual ground social-ecological resilience offers planning theory. I argue that at a time when planning theorists are calling for more attention to matters of substance alongside matters of process, social-ecological resilience provides a timely contribution, particularly given the minimal attention in planning theory scholarship to environmental and ecological considerations as a driving concern.