Canadian Forestry Journal^ March, igso 



119 



as possible, and it is the purpose ol 

 these notes to indicate which trees 

 may be relied upon to give, as soon 

 as. possible, satisfactory results in re- 

 gard to both shade and the other 

 qualities which should be required in 

 all shade trees, especially street trees. 



Soil and Location. 



This should be recorded, namely 

 that soil and conditions under whicli 

 the trees are planted have a great 

 deal to do with the rate of growth. 

 For exami^le. if Sugar maples are 

 planted in a soil of a heri\v clay typ • 

 the rate of growth will be about one- 

 fifth of wbat it wonld lie were th.' 

 trees ])lanlcd in a lo;nn_\' soil. Treo 

 which are i)lanted in wind swept 

 positions, or where the extreme heat 

 of summer affects them c(Misi(lerably, 

 will inalce ninch slower growtli than 

 when located tnuler la\(irable condi- 

 tions. 



It sbonld be stated also, that as a 

 general rnlc there is \ery little dil 

 ference in the coni])arati\'e rate ot 

 growth of most of the best trees for 



shade i)urposes. irees make the most 

 ra]iid growth for a period of about 

 t\vel\e years after planting; they 

 then settle down to an increase in 

 height of about one foot per year, or 

 slightly more in years which are fav- 

 orable to growth. 



I. Large Sized and Generally Rapid 

 Growing Trees. 



flie trees in this group ar > suitable 

 for ])lanting in wide streets or for 

 lawn and ])ark ])lanting. where there 

 is an alntndance of room. 

 American T^lm (I'hnus amcricana) 

 Sil\(,r I n- W bite Ma]de (.\cer s.iccha- 



rinnni ) 

 C'nt-K'a\cd ."^ibfr Maple (.\cer sac- 



cliarinum \\ ieri I 

 I'.isswdod ( Tilia americma) 

 White .\sh ( b'raxinns .tmericana) 

 White Oak (Onercus alba). 



The fastest growing trees in this 

 group are the .\merican i''.lm and ihe 

 two i\la|>lcs. Tlu' cut-!eaved Silver 

 Maple is a specially line tree f(M- lawn 

 pnrposes ; the fn-st year after p'ant- 

 iiig. until it has attained a height of 

 seventv-five feet, it makes very rapid 



