By Alistair Johnston
To figure out why trees suffer in the urban environment it is necessary to understand what they require to be successful. One of the most important, but overlooked, factors for successful tree growth is the provision of appropriate growing space for roots. The roots of a mature tree, in a natural unobstructed setting, can spread one-and-half to two times the radius of the crown. Providing enough space for root growth is a major challenge when establishing trees in dense populated areas, dominated by hard surfaces.
Read the full article: Growing Trees in the Urban Jungle