138 GARDEN DESIGN 



the same way as terraces are repeated on the 

 downward slope. 



WALLS 



MANY gardens are devoid of anything requiring 

 direct architectural treatment except their boun- 

 dary and kitchen garden walls. These are con- 

 sidered essentials, and it is a pity walls are often 

 grudged to other parts. The kitchen garden wall 

 is commonly such a dull feature that repetition 

 is not coveted, but a wall may be beautiful in itself 

 and interesting through its climbers and fruit trees. 



The material should be brick or stone, brick 

 being preferred as it is more suited for nailing in 

 trees, and also has fewer interstices to encourage 

 insect pests. If stone is used a fine grained sort 

 should be selected. 



A wall should never be less than 6 ft. in height. 

 The northern boundary, i.e., the south wall may 

 be 10 or 12 ft. high, but the other sides should be 

 less. The height depends somewhat on the size 

 of the area enclosed. An enclosure of from two 

 to three acres can bear 10 ft. walls all round with- 

 out looking boxed in : an acre is dwarfed by such 

 boundaries, while a 12 ft. wall is high enough for 

 any area. In any case it is advantageous to break 

 the heights. Not only is it unnecessary to have 

 walls of the same heights on all sides, but the 

 change of line is pleasant to the eye, 



