Although bluegum eucalyptus has great climatic adaptability, the most successful introductions worldwide have been to locations with mild, temperate climates, or to high, cool elevations in tropical areas (8). The ideal climate is said to be that of the eastern coast of Portugal, with no severe dry season, mean annual rainfall 900 min (35 in), and minimum temperature never below -7° C (20° F). In coastal California, the tree does well in only 530 mm (21 in) rainfall accompanied by a pronounced dry season, primarily because frequent fogs compensate for lack of rain. A similar situation is found in Chile where deep fertile soils as well as fogs mitigate the effect of low, seasonal precipitation (8). In Hawaii, bluegum eucalyptus does best in plantations at about 1200 min (4,000 ft) where the rainfall is 1270 mm (50 in) annually and is evenly distributed or has a winter maximum. Seasonality of rainfall is not of critical importance to the species. Although it generally grows well in countries with a Mediterranean or cold season maximum rainfall, it grows well also in summer rainfall climates of Ethiopia and Argentina (8).
- Burns, Russell M., and Barbara H. Honkala, technical coordinators. 1990. Silvics of North America: 1. Conifers; 2. Hardwoods. Agriculture Handbook 654 (Supersedes Agriculture Handbook 271,Silvics of Forest Trees of the United States, 1965). U.S. Department of Agriculture, Forest Service, Washington, DC. vol.2, 877 pp. http://www.na.fs.fed.us/spfo/pubs/silvics_manual/table_of_contents.htm
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