MAINTENANCE 99 



oughly familiarize themselves with the growing habits and the re- 

 quirements of wall garden plants. If this is not done the garden is 

 very apt to deteriorate into a normal type of garden with a few 

 persistent weeds of various kinds and some of the more common 

 and easily growing annuals like alyssum growing from the crevices of 

 the rocks. 



Water Garden. The water garden is the one garden which re- 

 quires less attention than any other garden when it is once correctly 

 developed. The main problem is that of keeping a supply of water 

 which is in no degree stagnant and in knowing the requirements for 

 the fertilizing of aquatic plants to produce the best development. 



(See Page 220). 



