HEAVY PRUNING MAKES WOOD. 



137 



trees described on pages 15, 16, or let him con- 

 sider the behavior of the dwarf pear tree in Fig. 

 111. All these considerations explain the gar- 

 dener's rule that in roses 

 and other ornamental 

 plants, the weak kinds 

 should be heavily pruned 

 and the strong kinds 

 lightly pruned.* 



If it is necessary to re- 

 sort to severe pruning for 

 the purpose of correcting 

 the shape or training 

 of a plant, and it is de- 

 sired at the same time to 

 avoid excessive growth, 

 the operator should re- 

 move the superfluous 

 parts gradually. This 

 caution is important, 

 even in the training of 

 herbaceous plants. A 

 grower of winter toma- 11L Heavy P nin g produces 



wood (in this case, a pro- 



toes writes me as follows fusion of wate rsprouts). 

 on this point: "I find 



that when planted thickly in the beds the foliage 

 needs heavy trimming to keep it within bounds; 

 and would say further of this trimming that it 



"See, for example, Ernest Walker, in "Garden-Making," page 298. 



