284 LANDSCAPE-GARDENING 



its plans should be influenced by a desire to produce 

 pleasing landscape effects. A hillside showing at 

 different seasons the flowers of sugar maples, June- 

 berries, red-buds, dogwoods, crab-apples and haw- 

 thorns can be planted so as to show beautiful pic- 

 tures as well as the characteristics of the different 

 plants. Evergreens can be planted so as to show 

 the characteristic development of the individuals 

 with branches spreading out and resting upon the 

 ground and also in time. showing the group and trunk 

 effects as seen in their native forests. Community 

 effects with trees and shrubs that grow naturally as 

 neighbors can also be shown. An ideal arboretum 

 would require a large area, but as it is for the benefit 

 of a wide section of country the necessary space should 

 be provided. 



An arboretum should serve not only for the study 

 of the plants it contains but to some extent at least 

 as a public park. It should have beautiful scenery 

 with hills and valleys and at the bottom of the latter 

 either running streams or reflections from smooth 

 surfaces of water, supplemented by open glades of 

 lawn or meadow. 



It will be advantageous if the site chosen for an 

 arboretum contains some native forest growth with 



