ADAPTATION OF CONIFERS 95 



Canada and at the Pacific Coast. While it is not often found 

 there under cultivation, it makes a fine lawn tree, though 

 requiring much room to develop to its full extent. When this 

 species is obtained from the colder parts of its range, it does 

 well at Ottawa, although a comparatively slow grower there. 

 It is such an attractive tree that it should be tested more 

 than it is. 



The hemlocks. 



The common hemlock, Tsuga canadensis, is one of the most 

 beautiful North American trees. It is graceful in habit and 

 its small foliage is of a distinct, characteristic, and pleasing 

 shade of green. It grows to large size, but is a relatively slow 

 grower, and for this reason makes a good lawn specimen for 

 many years, as the branches usually are held to near the ground. 

 One is fortunate in having large specimens of hemlock in a 

 landscape where there are clumps of trees or woodland and it 

 makes a very attractive feature. When used for hedge pur- 

 poses, hemlock proves very satisfactory and makes one of the 

 best low-growing evergreen hedges, as it is a slow grower and 

 can be readily kept in shape. Moreover, it stands shade better 

 than some other trees. Var. gracilis has smaller leaves than 

 the type and is even slower growing. It is an ornamental 

 variety. The common hemlock is not hardy on the prairies, 

 but does well both in eastern Canada and in British Columbia. 



Western hemlock, Tsuga heterophylla, makes a fine large 

 tree in British Columbia, where it is native in the mountains 

 and along the western coast. It is an important timber tree, 

 the wood being better than T. canadensis in the East. While 

 it has not been used much as an ornamental, it is attractive in 

 appearance and very graceful in outline and should be planted 

 more. It is not known under cultivation in eastern Canada. 



