plant trees along the streets in front of their premises, it would be 

 performing a good service, to both the borough and its residents. 



Because of the condition of the soil in this borough, and the 

 many obstacles met with in planting trees in our streets, the cost 

 of furnishing and planting trees in the streets is bound to be 

 slightly higher than would be the case in another vicinity, where 

 soil conditions are different, and where tree planting may be done 

 with much more ease, and consequently at a lower cost. 



After the trees are planted, the owners of property in front of 

 which the trees are planted should see to it that, in dry weather, 

 and especially in the summer time, the trees are properly watered 

 from time to time. In dry weather, each tree should have at least 

 6 gallons of water once a week. 



For the benefit of those who do not desire to have the Depart- 

 ment plant trees for them, but who desire to purchase their own 

 trees and plant them, under a permit from this Department, I may 

 say that it is advisable to plant street trees at least 25 feet apart, so 

 as to give them proper space for development, and in order to 

 avoid too dense shade. 



The best time for planting is from March 15 to May 1, and 

 from October 15 to December 1. 



The opening in the sidewalk should be at least 3 feet square, or 

 larger if possible, say 5 feet by 4 feet, especially where the side- 

 walk is of concrete, and the roadway of asphalt. The hole should 

 be at least 4 feet square and 3 feet deep, and filled with good, rich 

 soil. Manure should not be allowed to come in direct contact with 

 the roots. The tree should be planted at the same depth at which 

 it stood before transplanting, sprinkling fine earth among the roots 

 and tamping it down firmly, to exclude air space. After planting, 

 a guard should be placed around the tree. The tree should be pro- 

 tected from contact with the guard by the use of a piece of rubber 

 hose placed between the tree and the guard. 



Citizens are urged to plant trees in front of their property. 



Still better than individual planting is cooperative planting by 

 streets or blocks. This method secures uniformity of treatment. 

 If all of the property owners in a given block would join together 

 in having trees planted in front of their property, it would help 

 greatly toward bringing about uniformity of street trees. 



Permits for planting trees on the city streets are issued by this 

 Department upon application; and, after obtaining the permission 

 of this Department, the Bureau of Highways will grant the neces- 

 sary permit for opening the sidewalk. 



