Hedges and Screens. 129 



They may be set from one to three feet apart in the rows, and those 

 in one row opposite the spares in the other, as follows : 

 * * * * * * * * 



516. In a cool, humid climate, the hemlock makes a beautiful 

 hedge. It can often be transplanted from the woods, and it should 

 be set in double rows, to produce the finest effect. 



517. For the dryer climate of Iowa and the region west of the 

 Missouri, the native red cedar is preferable to all others, and about 

 the only kind of evergreen that can be grown for a hedge with much 

 certainty. 



518. For the Southern States, some species not coniferous, such as 

 the tamarisk (Tamarix), the Spanish bayonet (Yucca aloeifolia), the 

 Cherokee rose (Rosa Icevigata), various species of the cactus, and other 

 plants may be employed to great advantage. The native thorny 

 and ornamental shrubbery of that region affords many evergreens 

 not conifers that would be available for this use, and it would be 

 advisable to select such as are best known to be suitable for the soil 

 and conditions, and that are proved to be hardy. 



519. For the Northern and Middle States, the following (chiefly 

 deciduous) have been found successful in various localities : 



Buckthorn (Rhammts cathadicus). 



Crab-apple (Pyrus cormaria). 



English Hawthorn (Cratcegus oxycanthus). 



Native thorny trees (Cratcegus, various species). 



Privet (Ligustrum vulgare). 



Honey -locust (Gleditschia tricanthos.) 



Holly (Ilex opaca). 



Osage orange (Madura aurantiaca). 



520. For the more northerly parts of the North-western States, 

 the white or gray willow has been used with great success. For the 

 more arid regions further west, the mesquit (Algorobis glandulnsa) , 

 the buffalo berry (Sh.epherdia eleagnvides), and the Came/ana may be 

 tried with advantage. 



521. Of all these, where the climate will permit, the osage orange, 

 a native of Arkansas, Louisiana, Texas, and the Indian Territory, 

 has the most decided preference, and the methods of its planting and 

 management are as follows : 



522. The seeds should be procured fresh from their native locali- 



