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During recent years numerous named sorts of thorn apples,crabapples, flowering cherries, and other small trees have been puton the market. These trees could, with splendid results, be sub-stituted for the round-leaved or umbrella catalpa and weeping mul-berry of the old-time nursery salesman. They are not only hardy,shapely, and beautiful in flower, but many of the single-floweringsorts produce handsome fruit and others have a good autumncolour. There are now at least fifty sorts of small evergreen shrubs and vines,aside from the rhododendrons, which are reasonably hardy throughoutthe northern states. It is coming to be generally recognized that,aside from the antipathy to calcareous soils which is shown by therhododendrons and other ericaceae, the chief drawback to the use ofmany of our charming broad-leaved evergreens has not been so muchthe finding of a proper soil as the securing of a proper exposure and acondition of continuous moisture without stagnation. As the smoki-ness of our cities continues to increase the list of coniferous evergreensthat will survive this condition grows smaller. Therefore for wintereffects in cities we should turn to broad-leaved evergreens, many ofwhich are not only able to survive smoke and dust, provided they areoccasionally washed down and are kept always moist at the roots,but which contain among them some of the finest flowering plantswhich can be secured. |
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