8 MONTANA EXPERIMENT STATION 



trapping the trees or shrubs with burlap, heavy paper, or by wood- 

 en tree guards. 



Sixth, Late spring frosts. Some plants have a tendency to 

 start into growth very early in the spring and are frequently injured 

 by spring frosts. Plants that are likely to be injured in this way 

 should be kept dormant as long as possible. Shrubs or trees may 

 be wrapped with burlap, thus providing a shade which will have a 

 tendency to keep them dormant or to retard the growth a week or 

 ten days after the normal time. Many tender and half hardy plants 

 can be grown in Montana by giving slight winter protection, such 

 as wrapping with burlap or some slight covering. 



TREES AND SHRUBS TESTED AT MONTANA EXPERIMENT STATION 



ACANTHOPANAX. 



(Acanthopanax sessiliflorum) This plant grows into a shrub 

 about twelve feet high. It is a native of Manchuria and northern 

 China. Seeds were sent to us by the U. S. Department of Agricul- 

 ture and planted in the spring of 1907. Plants have gone through 

 two winters withput injury and promise to be hardy at this station. 

 The most decorative feature of this shrub is the cluster of black 

 berries borne the latter part of the season. 



THE MAPLES. 



The maples are among the best trees for shade and ornamental 

 purposes. The leaves on many of them assume very bright colors 

 in the fall, adding much to the beauty of fall landscapes. Some are 

 valuable for timber, and some American species produce sugar. 

 For purposes of shade the sugar maple, soft maple and Norway 

 maple are valuable. Maples are propagated by seeds, which are 

 sown in the fall, except in the early maturing kinds and the seeds 

 of these should be planted as soon as they ripen in the spring or 

 summer. Few of the maple seeds retain their vitality long after 

 they ripen and therefore to get good results fresh seed should al- 

 ways be planted. 



Silver or Soft Maple : ( Acer saccharinum ) This is a large 

 tree, growing to a height of 120 feet. The leaves are deeply five 

 Icbed and from 4 to 6 inches long, green above and silvery white 

 beneath. This tree is a native of 'eastern North America. It is 

 valuable as a shade and ornamental tree in locations where it can 



