THE PLACING OF SHADE TREES 



69 



Diagram for tree planting on narrow avenue, 

 planted alternately. 



Trees 45 feet apart and 



so prevalent that it may be described as the normal type 

 of street planting. It gives the ideal effect for which 

 street shade trees have been utilized a thoroughfare 

 lined with welcome shade and graceful foliage. In most 

 streets this arrangement affords the acme of decorative 

 effect and 

 comfort. The 

 usual place 

 for these is 

 between curb 

 and side 

 walk, al 

 though on 



narrow streets the sidewalk is sometimes next to the curb and 

 the trees are back of it. A parking strip, separating walk 

 from curb with a ribbon of grass, adds materially to the 

 beauty of the street, serves to help protect pedestrians from 

 the dust and mud of street traffic, and affords the neces 

 sary area for trees and their root development. It is a nar 

 row street that cannot spare at least 4 feet on each side for 



a parking strip of this char 

 acter, with its tree-planting 

 possibilities. The best prac 

 tice adopts 4 feet as a mini 

 mum width for the strip; 

 under no circumstances 

 should a tree be planted 

 nearer the curb than 2 feet 

 and, where space permits, 

 this should be increased. A 

 residence street width of 50 

 feet between the building 

 lines suggests a roadway of 

 not over 24 feet, sidewalks 



Growing trees on busy thoroughfares. Types 

 which tolerate severe pruning are planted be 

 tween sidewalk and curb or in rich earth 3 to 

 4 feet deep. 



