92 



PLANTING 



Oak, especially the Sessile Oak, grows fairly fast when 

 about 35 years of age. 



Corsican and Austrian Pines do not retain their very 

 active growth for more than about 30 to 35 years. 



The ultimate height growth of trees, in soils best suited 

 to them, is somewhat as follows : 



(3) The Persistency and Vigour of Side Branches. 



This is a matter which seldom if ever receives the atten- 

 tion it merits, and it varies very greatly in different species of 

 trees. The side branches of shade-enduring trees are 

 usually the most difficult to prune off naturally, as they 

 remain alive even in very subdued light ; whereas, under 

 similar circumstances, the branches of light-demanding trees 

 would quickly die, and in most cases fall off. 



But even when the side branches are dead, some trees 

 will retain their dead branches for a much longer period than 

 other trees, and unless the dead branches of trees quickly 

 fall off, the quality of the timber produced will be very much 

 lowered. 



For when the tree is cut up, it will often contain loose 

 dead " knots." 



