Issued October 3, 1907. 



United States Department of Agriculture, 



FOREST SERVICE— CIRCULAR 59 (Revised). 

 GIFFORD PINCHOT, Forester. 



FOREST PLANTING LEAFLET. 



EUCALYPTS. 



Eucalypts are native to the coast region of Australia and Tas- 

 mania, where at least 150 distinct species are recognized. More than 

 100 species have been introduced into the United States. They are, 

 however, adapted to a subtropical climate, and only a limited portion 

 of this country is favorable for their growth. The possibility of grow- 

 ing eucalypts in any region is determined by the amount of cold that 

 the young trees have to endure. Few of the species can survive a 

 temperature below 20° F., and none of them a temperature of less 

 than 12°. 



In general, eucalypts may be successfully planted in the sections 

 of the United States suitable for the culture of citrus fruits. They 

 are grown in nearly all the agricultural sections of California, along 

 the coast of southern Oregon, and to a limited extent in Arizona, New 

 Mexico, and western Texas. Several species have also been planted 

 in Florida and along the Gulf coast. Here, however, occasional 

 frosts have killed or severely damaged the trees, and for this reason 

 planting has been discouraged. 



Eucalypts have been planted most extensively in California, and 

 there the value of different species may best be determined. The 

 rate and habit of growth of the blue, sugar, and gray gums and a few 

 other species make them superior to other eucalypts and recommend 

 them especially for commercial plantations. Blue gum, one of the 

 best commercial species, has been the one most widely planted. Its 

 requirements, characteristics, and methods of propagation are typical 

 of those of other timber eucalypts. 



10294— No. 59—07 



