350 HOETICULTURAL MANUAL. 



At this time the purpose is only to give notes on the 

 most desirable shrubs that succeed well over large areas of 

 the United States. 



332. The Spiraeas. Spircea Van Houtteii stands well at 

 the head of the list in beanty of form, flower, and ability 

 to thrive in nearly all climates. Its pendulous branches 

 are loaded with pure-white flowers, and through the season 

 its bright-green leaves and graceful habit gives it interest. 

 A single plant with ample room for perfect development 

 often gives a striking expression in a porch corner or angle 

 of the walk. (Fig. 95.) 



Fio. 95. Van Houtt's Spiraea (Spiraea Van Iloulleii). (After 

 Maynard.) 



Spircea prunifolia gives its annual tribute of pure white 

 double flowers. Its habit of growth best fits it for a group. 

 If the strongest canes are cut back after blooming, the 

 number of bearing branches will be much increased (152) 

 (Fig. 9G.) 



Spirma Tltunbergii. This Oriental species has fine fern- 

 like foliage that in autumn assumes a golden shade. It is 

 useful us a group border, especially near the house. 



Spirwa trilobata is a dwarf compact grower, with masses 



