TREES AND SHRUBS ON THE FARM 23 



grounds at Bozeman. It has proved hardy in the Dakotas and should 

 prove satisfactory in this State where the altitude is not too high. 

 It does well on dry, poor lands. 



Pine, Scotch, (P. sylvestris) is native to Europe and has proved 

 hardy at this station. It is a desirable tree where irrigation w^ter 

 is available. 



Pine, Western Yellow or Bull, (P. ponderosa, var. scopulorum) 

 is hardy and a desirable tree, especially for shelter belts. It does 

 well on dry soils. 



Spruce, Colorado Blue, (Picea pundens) grows 80 to 100 feet 

 high and has bluish-green to silver-white leaves. It is hardy and 

 is one of our best ornamentals. 



Spruce, Engelmann, (P. Engelmanni) is a desirable ornamental, 

 growing 150 feet high. It is native to Montana. It is hardy and 

 good for group planting on lawns and for shelter belts or windbreaks. 



Spruce, Norway, (P. excelsa) is a very good tree for windbreaks. 

 On the Dakota prairies, however, it has not proved as satisfactory 

 as the Black Hills spruce and under similar conditions in this State 

 it will probably be best to plant the latter. Young Norway spruce 

 trees have not proved to be fully hardy at Bozeman but promise to 

 he hardy when acclimated. 



Spruce, White, (P. alba) is a valuable ornamental evergreen as 

 it develops a good conical shape and does welt on a variety of soils. 

 The Black Hills spruce is a form of the white spruce that is adapted 

 to the prairies of the Dakotas and should prove satisfactory on the 

 prairies of Montana with similar climate. It is slower in growth, 

 more stocky, and the needles are darker than the white spruce. 



