Herbaceous Plants 



275 



anthemums are among the best very late-flowering peren- 

 nials. In the North their hardiness is often uncertain. 



Columbine (Aquilegia vulgaris, etc.). The Columbines 

 are showy spring and early summer-flowering plants. 

 They vary from white to deep blue in color, and double 



FIG. 158. White Day Lily (Hosta plantaginea Grandiflora}. 



flowers are common. Columbines are easily grown, and 

 although the plants are not of long duration, it is not 

 difficult to grow seedlings every two or three years 

 to renew the stock. In addition to the varieties of 

 common garden Columbine (A. vulgaris), many of the 

 species are well worth growing. The Rocky Mountain 

 Yellow (A chrysantha) and the blue (A. caerulea) succeed 

 well in any good moist garden soil. The various species and 



