84 ROCK GARDENS 



light fibrous loam have been mixed, and a 

 moraine is made. 



The alternative method is to build up 

 instead of sinking. This can be done with 

 large blocks of stone, filling up the intervening 

 space with the required compost. Though 

 somewhat more expensive to make, it will 

 probably give better results. The one essen- 

 tial need of the moraine is drainage of the 

 most perfect description ; for this reason let it 

 be fairly high and exposed, when it will also 

 be less liable to suffer from ground damp. 



Many people might imagine that in such a 

 spot as this plants would suffer greatly from 

 drought during a dry summer, but this is not 

 the case, for so well does the stone retain 

 moisture that even in a dry season the soil a 

 few inches below the surface remains damp. 



