T. Fast-growing, deciduous trees useful for screens or windbreaks. They are shallow-rooted with somewhat brittle wood. (Children should beware of climbing poplar trees.) Poplars are best on cool soils which do not dry out too quickly. Increase byof one-year-old wood in early autumn.
Populus nigra betulifolia, sometimes known as the Manchester poplar, does well in industrial areas, ultimately reaching 80 to 100 ft. with a spread of about 40 ft. The Lombardy poplar is P. n. italica, growing to the same height but with a smaller spread.
P tremula is the aspen which does especially well in the north of England. Therustle almost continuously. This species is readily increased by suckers.