PLANTING 153 



It is very essential that all plants be grouped ac- 

 cording to their soil requirements, for a delicate 

 plant, no matter how necessary its color or form 

 may seem to be for a certain problem, cannot be 

 used if the soil is poor, and another selection from 

 hardier material must be made. 



As has been intimated, the architectural or 

 horticultural emphasis must constantly be kept in 

 mind in designing the development of any plant- 

 ing scheme. In the architectural style the inter- 

 est depends upon mass (Fig. 36) in form, value, 

 and color; while in the horticultural type the in- 

 terest lies with the individual plant and its form, 

 value, and color. The Faulkner Farm garden 

 here shown is interesting for its forms and masses 

 rather than for any flower color. For this reason 

 it shows up well in black and white. 



In undertaking a planting problem, the desired 

 effect must first be carefully determined, and then 

 the material selected that will produce the effect 

 required. The landscape-designer wishes certain 

 forms, sizes, and colors, and considers these essen- 

 tial to the best development of his problem. He 

 may be able to achieve these results in many differ- 

 ent ways by the use of a variety of plant materials, 

 and consequently will have a considerable range of 



