CHAPTER XL 



WILD GARDENING ON WALLS, ROCKS \ OR RUINS. 



AKENAKIA BALBAEIOA, BSlf-planted on wall 

 at Great Tew. 



There are hundreds of 

 mountain and rock-plants 

 which thrive better on an 

 old wall, a ruin, a sunk 

 fence, a sloping bank of 

 stone, with earth behind, 

 or a ' dry ' wall than they 

 do in the most carefully 

 prepared border ! Many 

 an alpine plant, which 

 may have perished in 

 its place in the garden, 

 thrives on an old wall near 

 at hand, as, for example, 

 the pretty P yrenean 

 Erinus, the silvery Saxi- 

 frages of the Alps, Pinks 



1 The rocks meant here are natural ones — not the absurdities too often 

 made in gardens. 



