CLIMBING AND WALL PLANTS 127 



Buddleia variabilis, Ceanothus azureus, Coton- 

 easter Simonsiij Indigofera Gerardiana, Aris- 

 tolochia Sipho, Viburnum plicatum, but they 

 are not to be recommended for very smoky 

 localities. 



THE HOP (Humulus lupulus) has few 

 equals for covering a trellis or wall in smoky 

 towns. Being an herbaceous plant of stout 

 growth, it is well able to withstand both soot 

 and smoke. The ample foliage and conspicu- 

 ous fruit are additional recommendations. 



THE LARGE TRUMPET FLOWER (Tecoma 

 radicans major). This old occupant of our 

 gardens is perhaps the loveliest wall plant in 

 cultivation, and having been found suitable for 

 planting in towns is an extra qualification. 

 The stems are long, twisted and wiry, while 

 the graceful pinnate leaves and handsome 

 trumpet-shaped, scarlet-red flowers all combine 

 to make this wall shrub a general favourite 

 with planters. It is quite hardy, of free 

 growth, and flourishes best in a light, well- 

 drained loamy soil. This well-marked variety, 

 which differs from the species in its more 



