STREET AND AVENUE PLANTING : Page 260

Trees such as the maidenhair tree, tree of heaven, oriental plane,and pin oak should not be used for street tree planting without athorough knowledge of the conditions under which they are to growand the conditions to which they are best adapted. The pin oakand the maidenhair tree are tall, pyramidal trees, which should beused only on wide streets in a heavy soil, and the maidenhair treeshould never be used for street and avenue planting except in the lesssevere climatic conditions. The tree of heaven has a vigorous habitof growth and is an excellent tree in the smoky, congested sections ofour cities where shade trees are required. Before trees in this groupare used some of the important bulletins and books on our city streettrees should be consulted for further information. (See Bibliography.)