178 Landscape Gardening 



branches are diseased and break off, giving the tree an 

 unkempt look. 



Flowering Peaches and Plums (Prunus sp.}. Noth- 

 ing can be more beautiful than the double-flowering peaches 

 and plums, but the flowers are of short duration and the 

 trees subject to all the diseases and insects that attack the 

 fruit-bearing trees, and are therefore not largely planted. 



FIG. 98. Lombardy Poplar (P. nigra, var. italica). 



They begin to bloom, however, in a few years from planting, 

 and where the expense can be afforded may be planted 

 temporarily to occupy the space until more permanent or 

 slower-growing trees can give the desired effect of shade or 

 ornament. 



Flowering Apples. While the blossoms of the apples 

 are of short duration, like those of the plum, peach, and 



