56 



HARRISONS' NURSERIES, BERLIN, MD., U. S. A. 



Group planting of Koster Blue Spruce. 



Spruce 



For ornamental plantings and windbreaks, the green spruces 

 are almost indispensable. They are not surpassed by any ever- 

 green in the winter landscape, and in summer make a most 

 charming foil for Roster's blue and Colorado blue. In fact all 

 of the varieties harmonize with the deep coloring of the pines 

 and hemlocks. The spruces are upright growing trees, tapering 

 to a pointed top. 



ICrkef^i*'e RTiia (Picea pungens Kosterii). Without 

 '-^^oKKZi 9 J-91UC qxiestion the handsomest of the blue- 

 foliaged lawn trees. The foliage, borne very densely on the 

 branches, is an intense silver-blue. The tree is a slow 

 grower and has regular, slim branches. AH of our trees are 

 grafted from fine-colored specimens and of the rich blue 

 shade that makes the Koster spruce so handsome. Scions 

 are cut from the bluest and most handsome specimens that 

 can be found and are grafted on sturdy seedling roots ; this 

 method insures every specimen to be of the true blue color. 

 Seedling blue trees often revert to the green type, but the 

 grafted trees do not disappoint. Each 10 



18 to 24 in $4 OO $30 00 



7 to 8 feet Specimens 14 00 



8 to 10 feet Specimens 16 00 



Colorado Blue (P. pnngens glauca). This variety is hardy 



; and slow-growing, taking a shape that is 



symmetrical, narrow-pointed, and gracefully tapering toward 

 the top. The foliage is blue and sage-green, and the trees 

 seem at their best when planted in front of dark-colored 



10 

 $55 00 

 70 00 



evergreens. Each 



4 to 5 feet $ 6 00 



5 to 6 feet 8 00 



6 to 7 feet Specimens 10 00 



7 to 8 feet Specimens 12 00 



8 to 10 feet Specimens 14 00 



