92 



GARDEN DESIGN 



security is gained if the next course is laid on the 

 " tail " of the topmost stone. (See Diagram 78.) 

 The stones must not be sorted so that all the 

 larger ones come at the bottom, for this has no 

 counterpart in nature. When building against a 

 bank it is a good plan to have a certain quantity of 

 stones taken round to the top, and from thence 

 rolled into position, though the bulk of the stones 

 will have to be carried upwards. The trampling 

 over ledges already made is no disadvantage as it 

 tests the stability of the work. 



Upright portions 

 that are to be used 

 for saxifrages, se- 

 dums and so forth, 

 may be planted as 

 the work proceeds, 

 but all ledges must 

 be left. Many of 

 them may have to be 

 given specially prepared soil for particular plants, 

 in which case the soil already there is scooped 

 out and fresh stuff replaced. 



In planting, the best effect is made by putting 

 one variety only on each ledge. Mountain plants 

 are usually small, and more than most flowers 

 require massing. Bluffs may be accentuated by 

 dwarf conifers and shrubs. It is a mistake to in- 

 troduce florist's varieties. There is no lack of 

 species accustomed to wild surroundings, and the 



DIAGRAM 78 



