10 MONTANA EXPERIMENT STATION 



on bright red colors in autumn, which add much to the beauty of 

 the landscape. 



Plants grown from seeds secured in Ottawa, Canada, are hardy 

 at this station. Young plants secured in Pennsylvania winter kill- 

 ed to the ground the first year, but new growth came from below 

 the dead portion and they now seem hardy. This is an excellent 

 plant for shrubberies and group plantings and promises to be hardy 

 at this altitude. In lower altitudes in the state it will prove quite 

 hardy. 



Box Elder: (Acer Negundo) This is a tree which reaches .1 

 height of about 60 feet; the leaves are pinnate, leaflets three to five 

 in number and from two to five inches long. It is a valuable tree 

 for shelter belts as it will adapt itself to many adverse conditions. 

 It grows best on moist, rich soil. The tree is hardy and adapted to 

 all sections of Montana where water for irrigation is available. It 

 has a spreading shape and is not desirable for street planting. 



In 19/33, five hundred plants, 6 to 12 inches high, were secured 

 in Iowa and planted in our nursery. These have been hardy and 

 do not winter kill. Trees grown from native gathered seed are also 

 hardy and produce good plants. In 1908, 1,000 small seedlings 

 were secured in Iowa and planted. These killed back one-fourth 

 in the winter of 1908-9, but at this time have started into growth 

 below the injured portion. Old trees growing in Bozeman seem 

 perfectly hard. 



Large branches are often broken by heavy winds and unseason- 

 able snow storms. The tree is subject to the attack of several in- 

 sects which reduces its value for planting on the lawn. The box 

 elder is a good tree for wind breaks and shelter belts, but where 

 other trees can be grown it should not be planted o<n the lawn or 

 street because of its low spreading habit, the ease with which it is 

 broken by snow o<r wind and the insects which infest it. The box 

 elder is native to many parts of Montana, particularly along the 

 Missouri and Milk river bottoms. 



(Acer campestre:) This shrub or tree occasionally attains 

 a height of 50 feet. The leaves are from three to five lobed, from i l / 2 

 to 3 inches long, of a dull green color. It is native to 

 Europe and western Asia. Ten plants, 4 to 6 feet high, were se- 

 cured in Pennsylvania and planted in the spring of 1904. The cur- 



