Urban Heat Islands (UHIs) are a growing concern as urbanization intensifies globally. Gardens, both public and private, have been identified as a potential tool to mitigate the effects of UHIs. This review synthesizes recent research on the role of gardens in reducing urban temperatures, examining their cooling effects, mechanisms, and overall impact on urban climates. By evaluating various studies, we highlight the importance of garden design, plant selection, and maintenance practices in maximizing their cooling benefits. The review concludes with recommendations for integrating garden management into urban planning to effectively combat UHIs.