Complimentary 
NEW SERIES VOL. VIII 
NO. 4 
ARNOLD ARBORETUM 
HARVARD UNIVERSITY 
BULLETIN 
OF 
POPULAR INFORMATION 
JAMAICA PLAIN. MASS. MAY 9. 1922 
Asiatic Crabapples. The conspicuous plants in flower this week are 
some of the early flowering Chinese and Japanese Crabapples. The 
flowers of these trees make one of the principal spectacular displays 
of the year, and only the flowers of the Lilacs attract a larger num- 
ber of visitors. Among these Crabapples are several small trees and 
shrubs which should find a place in every northern garden, for few 
plants which can be easily and successfully grown from Canada to the 
Potomac and from the Atlantic to the Pacific are more beautiful when 
covered in April or northward in May with their white or rose-colored 
flowers, or in autumn when their branches are loaded with brilliant red, 
scarlet or yellow fruits. These Crabapples grow best in cool, rich, deep, 
well-drained soil, and lime does not interfere with their successful devel- 
opment. Some of the wide-branching species lose their beauty of habit 
unless sufficient space is allowed for their free growth, and nearly all 
these Crabapples look better as isolated specimens than when crowded 
together in too compact groups. Crabapples, like many other plants 
of the Rose Family, are liable to be attacked by the San Jose scale 
which unless kept in check can seriously injure them. For many years 
much attention has been paid at the Arboretum to these plants, and a 
large and now almost complete collection of the species and recognized 
hybrids has been assembled. In the future it can be undoubtedly in- 
creased by the introduction of new hybrids for these plants hybridize 
freely, and from seeds gathered from species in a collection like the 
one in the Arboretum distinct new forms are certain to appear. The 
Asiatic Crabapples are arranged in two groups. The oldest of them is 
on the left hand side of Forest Hills Road and the other, which is 
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