Tracing the development of nature education theory reveals that numerous thinkers and educators have underscored the pivotal role of individuals as an integral part of nature, encouraging active participation and active agents in nature education. As the nationwide community garden network expands, with nature education as its cornerstone, the utilization of community spaces for natural education is increasingly promoted due to its accessibility, sustainability, and high participation. This study reviews the practices, innovations, roles, and mechanisms of nature education within community gardens across various levels. By analyzing the function of extensive multi-level community garden networks in nature education from theoretical and empirical perspectives and referencing community garden initiatives in Shanghai and beyond, we aim to consolidate and advance a replicable model for grassroots collaboration in community gardens that fosters nature education. We strive to establish a scalable framework aligned with policies promoting community-based cooperation, governance, and public engagement in urban revitalization efforts. The community garden approach to nature education raises awareness about grassroots collaboration and diversifies urban regeneration themes and methods.