io6 THE LANDSCAPE GARDENING BOOK 



reaches sixty-five feet high in the wild state were it grows 

 thickly on swamp grounds. 



EVERGREENS FOR ROCKY SITUATIONS 



i Pinus montana: Swiss mountain pine ; variable, being some- 

 times forty feet high and sometimes a mere shrub; this is 

 more likely to remain in the latter class and stop growing 

 when it has reached a height of from six to twelve feet. 



2 Picea Engelmanni: Engelmann spruce; sometimes one hun- 

 dred and twenty-five feet high at maturity; plant always 

 in a group. 



3 Pinus monticola: silver or mountain white pine; one hun- 

 dred feet high; dense in growth; silvery in color. 



