Tree Rescue Hub is a model pioneered by Guardians Worldwide for community led, indigenous led and grassroots regeneration of green spaces. Each TRH is led by a community according to place-specific and community-oriented priorities and needs. Thus, the model us meant to work both at local level, through knowledge of native species, local cultural and heritage, traditional ecological knowledge, but also, internationally, through co-operation, skills exchange and knowledge transfer between different hubs.