largely due to the fact that the roots of the cottonwood 

 are nearly all near the surface and therefore the trees in 

 a grove soon suffer for moisture, unless they are in a low 

 or damp place. 



The Norway poplar grows even faster than the cot 

 ton wood, and has a much more symmetrical form. 

 While it is a near relative of the cottonwood, it is super- 

 ior to the latter for grove planting. 



Willows grow rapidly and can be easily started from 

 cuttings. The white willow and the diamond willow 

 are perfectly hardy and make good windbreaks. If a few 

 rows of cuttings are put out and cultivated five years, 

 there is no reason why every set of farm buildings should 

 not have a very effective protection from the northwest 

 winds in winter. 



Golden willows are more beautiful than white or 

 diamond willows, but they have not stood drouth so well 

 here. 



TheTaurel leaf willow is quite satisfactory also. Its 

 dark green glossy leaves make it especially desirable; and 

 its freedom from insect pests is remarkable. As a rapid- 

 growing shade tree it has few equals, and for a street or 

 lawn tree it is quite acceptable. 



The box elder seems to be the favorite tree for street 

 planting in this region. The tree has many things to 

 commend it; such as, rapid growth, hardiness, and dense 

 foliage. The showing that it has made and its durability 

 justify a wider planting of the box elder in groves, and 

 especially when mixed with other trees. 



The white elm is being tried on these grounds, and 

 gives promise of satisfactory results. This is especially 

 desirable for street planting, but needs rather careful 

 pruning to keep it in good form. 



The green ash is unquestionably the very best tree 

 for grove planting in North Dakota. The tree is native 

 along many of our streams and is absolutely hardy. It is 

 not so rapid in growth as the box elder or cottonwood; 

 but is far more durable in a grove and furnishes more 

 valuable wood and. posts. If ash and box elder are plant- 

 ed alternately and rather close together, the ash grow up 

 much straighter and more rapidl\ r than when given too 



