22 WALL AND WATER GARDENS 



occasionally even more. The plants for this use will 

 be Cistus and Helianthemum, Lavender, both the large 

 and the dwarf kinds, Rosemary, Phlomis, Santolina 

 (Lavender Cotton), Southernwood, Olearia Haastii, 

 Eurybia gunniana (hardy only in the south of 

 England), Cassinia fulvida, Berberis Aquifolium and 

 B. vulgaris (the common Barberry with the beauti- 

 ful coral fruits), Scotch Briers, Rosa lucida and Rosa 

 wichuraiana, and any other beautiful small shrubs, 

 preferably evergreen. Also some of the pleasantest 

 of the Sweet Herbs, Hyssop and Catmint (beloved 

 of cats), both beautiful garden plants, and Rue for 

 the sake of its pretty growth and blue leaves. These, 

 or rather a few of them at a time, in very carefully 

 selected association, would be grouped upon the top 

 and a little way down. 



It will have a good effect, if one of these more im- 

 portant bush-like plants, in the case of a dry wall from 

 eight to ten or more feet high, swept right down with 

 a broken or slightly curving diagonal line from top 

 to bottom, with some more plants of the same on the 

 lower level at the wall's foot. For this use Othon- 

 nopsis, Nepeta, Hyssop, dwarf Lavender, and Santolina 

 would be among the best ; Santolina being especially 

 valuable, as it is excellent in winter and never untidy 

 at any time. 



The neat little Scabiosa Pterocephala must have a 

 place. It is a good plan to have a section of the 

 wall devoted mainly to plants of grey foliage ; here 

 would be the place for this, in company with Achillea 

 umbellata and Artemisia sericea and others of this 



