ALPINE FLOWERS. 



Part I. 



just sufficiently raised to crawl under, and must do a deal oi 

 good by destroying slugs, &c. I also protect frogs and all car- 

 nivorous insects." Toads, however,, treated in this way, might 

 become too old and bloated to be agreeable objects reposing on 

 tufts of small Gentians, and the like. Ceaseless handpicking is 

 the remedy for slugs, and where not done, there is little hope of 

 succeeding with many subjects, at least in regions where slugs 

 are as abundant as we usually iind them in gardens. 



Fig. 20. — Waterfall fringtd with Yuccas, Dwarf Pines, dimbing and trailing plants. 



As water is often introduced in connection with rockwork, and 

 high cascades riiay be frequently attempted, and as the supply 

 often flows from a woody knoll, it is well to take advantage of this 

 position for the arrangement of Yuccas, large grasses, herbaceous 

 plants of noble port, and the like, that cannot well be arranged 

 among the dwarf inhabitants of the rock-garden proper. Among 

 the many plants suited for this position, the new Clematises 

 raised by Jackman and others are the most magnificent. Planted 

 high up on the rocks in a deep bed or vein of rich light soil, 

 they will fall over the faces of the sunny rocks, robing them as 

 with imperial purple. The plants suited for banks and high 

 rockwork will be enumerated farther on. 



