PLANTING 141 



other time of the year, and this permits a more 

 highly. specialized type of planting. Seasonal se- 

 lection may apply in greater or less degree to any 

 of the planting types. 



It is essential that the landscape-designer 

 should arrange all his data in such a way as to be 

 able to find the plants he wants for any special 

 reason in the shortest possible time. He may 

 have designed a garden for a specific purpose, sea- 

 son, and color, quite without reference to plant 

 material, and now it is necessary for him to find 

 the plants which will produce the effect he desires. 

 The easiest way to do this is by the card-index, but 

 it is very difficult to work out a card-index scheme 

 that will contain in simple and accessible form all 

 the characteristics of plant materials. Plants are 

 grouped, regardless of their botanical classifica- 

 tion, according to certain marked features which 

 lend special emphasis or attraction. Under these 

 headings are height, form, quality, characteristics, 

 season, value, texture, color, and soil. 



Shrubs are divided into three classes according 

 to their height: a, low; 6, medium, and c, high. 

 Height is a primarv consideration in _all planting 

 sc h emes, as it d etermines the scale of the entire 

 plantmg^^roblem. 



