ROCK AND ALPINE PLANTS 145 



of the rock garden. Two species of Geranium 

 G. sanguineum and G. cinereum are pecu- 

 liarly suited for withstanding soot, smoke, and 

 fog, and have not only charmed us with their 

 wealth of flowers, but increased in size and 

 strength. A dwarf Thorn (Cratcegus iner- 

 mis com pact a), barely 15 in. high, though 

 nearly twenty years old, and Cotoneaster ad- 

 pressa, are excellent low-growing shrubs for 

 the smoky garden. The pretty white flowered 

 Iberis correcefolia is a charming town plant 

 and when established in masses is particularly 

 effective. Euonymus radicans kewensis has 

 become quite established and seems to do 

 well as a town plant, and, being of procum- 

 bent growth, is admirably suited for the rock 

 garden. Few plants are, however, better 

 suited for growing in the most smoke-infested 

 parts of London than the Moneywort or 

 Creeping Jenny (Lysimachia N ummularia) . 

 In many parts of the East End, where filth 

 and smoke are the order of the day, this pretty 

 plant may be seen thriving to perfection in 

 fact, it may be described as peculiarly suitable 



