242 LANDSCAPE GARDENING 



somewhat educational, and in a display of this sort 

 plants are grouped not according to their botanical 

 characteristics, but rather on account of their soil 

 requirements, time of bloom, and hardiness. The 

 first of these requirements will group plants of 

 different appearances in the same location. The 

 exposure of the position wiU likewise determine 

 the hardiness of the plants to be employed. The 

 time of bloom is more of an esthetic question, as 

 are the color values of the leaf, flowers, fruit, and 

 twig. The habit of growth wiU determine largely 

 the position of the plant. Then, too, in a garden 

 scheme of this kind special features , are often in- 

 troduced, such as a flower display or the exhibi- 

 tion of exotic plants. Specimens are frequently 

 grown in more favored localities, and transplanted 

 into the garden for a short time only for display 

 purposes. There is no attempt made to group 

 plants of the same habitat together, but the plant- 

 ing material is used solely on account of its shape, 

 color, and quality, and upon the satisfactory com- 

 bination of these depends the success of the result 

 obtained. 



Pleasure gardens are divided into two classes 

 according to whether their emphasis is architec- 

 tural or horticultural. In the architectural class 



