Nature strips are a kind of informal green space in cities that are contested and constantly transformed by the more-than-human communities that occupy them. This paper proposes walking as a novel interaction design research method to uncover embodied knowledge of relationships between multiple species living in nature strips. Understanding the interactions between people, plants and places can enable perspectives often overlooked in informal green spaces. Through walking interviews with residents of a street in Bulleke-bek, Australia, it became evident that nonhuman species are an integral part of community well-being and can be active participants in conversations. The results of the walking interviews provided important insights into co-designing future urban greening projects that allow for active participation of both people and plant communities. Facilitating more-than-human agency by walking as method can foster ways inclusive approaches to supporting biodiversity in urban habitats through interaction design.