68 BOOK OF GARDEN PLANS 
seen on the same plan at the same time. The section shown at the bot- 
tom of the plan gives an idea of how an imaginary end of the wall looks, 
and shows how the rocks are set into the bank. 
The quantity of herbs in each spot should be at least half a dozen 
plants, but on the wall face they should be in larger masses of a dozen 
or more as the arrangement of the boulders allow. Arrows indicate the 
approximate location of each group among the rocks. You cannot put 
the plants in regular order should you try; the more irregular the outline 
to the plant groups the better. 
The plants on the wall face should be in general about halfway down, 
to keep out of the way of the plants hanging down from the wall top, and 
not to get hidden by the taller herbs at the base of the wall. 
On the list the three plantings are separated, as the herbs used in 
each group are quite different in character. 
No special effects are aimed at, save to get plants suited to these 
conditions, a pleasing foliage effect, and some show of flowers from May 
to September. In its details the planting may be infinitely varied from 
the arrangement that the plan suggests. : 
