The Greening of Detroit is a 501(c)(3) non-profit environmental organization whose mission is to inspire the sustainable growth of a healthy urban community through trees, green spaces, healthy living, education, training and job opportunities. The Greening serves communities in Detroit, Highland Park and Hamtramck, Michigan.

Urban reforestation is the practice of planting trees, typically on a large scale, in urban environments. It may also include urban horticulture and urban farming.