52 THE BOOK OF EVERGREENS. 



rially in consequence. A second trimming is also given 

 the hedge in October, to bring it into shape. 



The same principle governs the pruning of specimen 

 evergreciis. When we wish to weaken the growth, trim 

 the young shoots early in the season ; but on the contrary, 

 if we desire a stronger growth, cut back in the autumn 

 after the shoots are ripened. 



Observation and practice will soon teach the operator 

 many facts in relation to this subject that cannot be 

 learned in any other way, as much depends upon the ob- 

 ject we desire to accomplish. 



