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IOWA DEPARTMENT OF AGRICULTURE 



Fig-. 14. — Black Hill spruce trees on upland soil. These trees are 

 between 30 and 40 years old and have a heig-ht of about 30 feet. 



WHITE CEDAR (arbokvitae) — (TJiuja occidentciUs) 



The Tree: In the United States the arhorvitae or white cedar is 

 native from the northeastern part of the country to central Minnesota. 

 It is generally found in the so-called "cedar swamps" or on moist situa- 

 tions. Well developed trees in the open have a beautiful pryamidal 

 crown. The leaves are very small and are arranged in broad flat sprays. 

 In central Iowa upland grown trees are very slow in growth and before 

 reaching an appreciable size gradually die out. In lowland situations 

 where the water table is close to the surface, the trees are very satis- 

 factory for Iowa planting. They will withstand wet soil and make a 

 good growth if the water is not stagnant. The white cedar makes one of 

 the most effective windbreak trees. It stands considerable shading, con- 

 sequently can be grown closely spaced. 



