SOME OF THE OKNAMENTAL SHRUBS AND VINES. 351 



of white flowers, very useful for border in banking inside a 

 taller growth. 



Fig. 96. — Bridal-wreath {Spiroea prunifoUa). 



Spirma callosa alba is also useful as a group or bank 

 border if the old wood is cut back as practised with the 

 roses, as it only bears on wood of the same season's growth. 



