THE BOOK OF GARDENING. 



any sub-tropical plant may be used, providing it is sufficiently 

 robust in constitution to withstand the variations of our changeable 

 climate. Many of the plants used are of a tender nature, and 

 only ^'suitable for standing outside during the hottest part of 



Fig. 90. — Arundo Donax. 



the summer ; but there are others which are hardy enough to 

 withstand an ordinary English winter — in the South of England, 

 at any rate. To this latter group belong such plants as 

 Gy7ie7'iii7n argenteiim (the Pampas Grass) (Fig. 89), Arimdo 

 Donax (Fig. 90), Gunnera scabra (Fig. 91) and G. manicata, 



