Book published 1980.

The Dominion Arboretum and Botanic Gardens of Canada located at the Central Experimental Farm in Ottowa displays a wide range of well-established trees and shrubs, some dating back to 1889 when the Arboretum was started. The existing Arboretum covers about 26 ha of rolling land between Prince of Wales Drive (Ontario Highway 16) and the Rideau Canal and comprises various soil types and moisture levels. Because it is north of 45° latitude, the Dominion Arboretum is the most northerly arboretum on the continent and is especially useful in testing for hardiness of plant materials.