What policy and implementation lessons can we learn from successful small-scale urban greening (SSUG) projects? What research, education, and design insights can be gleaned from understanding the tension between research and practice? The first half of the conclusion examines the lessons learned that can help us to more effectively design, implement, and maintain SSUG projects. Key insights include the need to move beyond ecological-only drivers for green infrastructure; the need for departmental alignment and the recognition of the symbolism of green roofs; the role of policy gaps and activism for elevated post-industrial parks and trails; and the role of community activism, tactical urbanism, and a socio-ecological understanding of urban greenspace for vacant lots. The second half of the conclusion discusses what we can learn about the human relationship to nature and our daily lived experience from how we value urban nature, particularly around health, community, and equity benefits alongside the more traditional ecological goals; how we experience nature, particularly around new research methods to help us better understand how everyone can benefit from urban nature; and how SSUG can be a tool for education and a more active relationship with nature.