HARDY CLIMBING SHRUBS 57 



which belongs Ivy (Hedera Helix), Climbing Hy- 

 drangea (Hydrangea petiolaris) and Evonymus radi- 

 cans, short roots are freely emitted everywhere on the 

 stem on the side away from the light and these adhere 

 tenaciously to the object affording support. In the 

 Trumpet-flower (Campsis) the shoots twine somewhat 

 and also emit roots but only from definite localized 

 points. Other plants like certain Roses climb or 

 cling by means of hooked prickles. 



These facts are not merely interesting in themselves 

 but are of direct practical importance to all who wish 

 to enjoy in their gardens climbing plants since they 

 indicate clearly the nature of the support needed by 

 each group. 



It is the fashion nowadays to erect in the immediate 







vicinity of the house a heavy, massive structure of 

 masonry or wood and style it euphemistically a per- 

 gola. As to its merits as an architectural feature I have 

 no criticism to offer. In lands of perennial sunshine 

 like southern California, Arizona, and other dry 

 southern states, such arbors clothed with climbing 

 plants dowered with ample foliage afford welcome re- 

 lief and serve as cool and delightful retreats from the 

 hot sun's rays. But in northern lands such structures, 

 if intended primarily for the accommodation of 

 climbing plants, would certainly look more attractive 



