PRUNING OF PLANTS. 



281 



I'. S. Dept. Agr. 

 FIG. 96. TREES GROWN CLOSE TOGETHER FOR TIMBER. 



should not be more than eighteen inches from 

 the ground. At the same time the lateral 

 branches should be pruned back so that the cen- 

 tral stem will lead. 



The advantages of heading a tree low are: (i) 

 it makes a tree stronger and less liable to be 



