Derickson and colleagues provide the strongest epistemological critique in the corpus. They argue that justice in urban greening cannot be reduced to the distribution of trees or parks because urban inequalities are historically produced, spatially multi-scalar and structured through power. Their five tenets ask researchers to reconsider the category of the urban, practise reflexivity, work as knowledge brokers, embrace uncertainty and cultivate modest imaginaries of infrastructural intervention. Particularly important is the claim that knowledge production itself can reproduce exclusion when communities are treated as sources of data rather than partners in framing problems. The methodological operation is therefore reflexive: urban greening research must examine its own authority, scale and modes of translation. The paper bridges urban political ecology, infrastructure studies and epistemic justice, repositioning the researcher from detached observer to mediator within a contested socio-ecological field.