The following trees are recommended for various planting purposes 

 in Idaho : 



Black Locust 



(Robinia pseudacacia) 



A hard wood, valuable for shade, for posts, fuel, or any purpose, 

 where strong hard wood is needed. This tree may be planted in almost 

 any part of the state below an elevation of 4000 feet with success. Will 

 grow without irrigation where fifteen inches of rainfall occurs, and will 

 also respond wonderfully well to irrigation. Water should be turned off 

 about the first of August in order to permit -the wood to harden up before 

 hard freezes eome on. It may be grown in thickets for wind-breaks, 

 poles, and posts, or spaced for shade trees. 



Honsy Locust 



(Gleditsia triacanthos) 



A valuable hard wood tree, hardy below 4000 feet elevation, and doing 

 well under irrigation or with twenty or more inches of rainfall. Excel- 

 lent for posts and for other uses in contact with the soil. 



Norway Maple 



(Acer platinoides) 



A handsome shade tree. Will do well with twenty inches of rainfall 

 or will grow rapidly under irrigation and is generally frost-hardy. Water 

 should be turned off about the middle of August. 



Silver Maple 



(Acer saccharinum) 



A standard shade tree growing more rapidly but under much the 

 same conditions as the Norway maple. 



Sycamore Maple 



(Acer pscudo-platanus) 



An excellent tree for the moister parts of the state. Will probably 

 do well under irrigation. Hardy under 4000 feet elevation. 



Black Walnut 



(Juglans nigra) 



Valuable as shade and nut trees and also for posts. May be grown 

 with 20 inches of rainfall or by means of irrigation. Water should be 

 turned off about the first of August. Does not mature nuts well at the 

 higher elevations. 



Butternut 



(Juglans cincra) 



Valuable for shade, nuts, or posts. Requires about the same condi- 

 tions as the black walnut. 



White Ash 



(Fra.vinus americana) 



An excellent hardwood tree for shade, posts, poles, or fuel. Wood 

 valuable where strength and elasticity are required. Tree hardy up to 

 elevations of 4500 feet, but requires good soil and plenty of moisture. 



