Drawing on social exchange theory (SET) and job demand‐resource (JD‐R) theory, the purpose of this study is to examine the role of green knowledge sharing and green group cohesion in the context of green practices and green work engagement. Data analysis of the 392 respondents working in managerial positions at RMG factories in Bangladesh shows that green competency‐building practices have a significant relationship with green work engagement. However, the study has not found any relationship between green performance management practices, green involvement practices, and green work engagement. Nevertheless, the study shows that green knowledge sharing mediates the relationship between green practices and green work engagement. Furthermore, this study's contribution to SET and JD‐R theories is referred to as “green group cohesion” as we have found it to be a significant moderator in the indirect relationship between green competency‐building practices, green performance management practices, green involvement practices, and green work engagement through green knowledge sharing. The findings have implications for the theories and practices that are discussed.