ON NATURALIZING TENDER PLANTS, 5 



it is necessary to keep it from becoming trouble- 

 some, by perpetually cutting it almost to the 

 root ; from which fresh shoots fourteen feet in 

 length, resembling those of the osier willow, are 

 annually produced. I may also enumerate a 

 few other plants of tender constitution in Britain, 

 which appear equally hardy in this more uni- 

 form climate. The Celtis micrantha, which 

 ranks among our stove-plants, grows with very 

 little care out of doors. So do both the double 

 and single varieties of Camellia Japonica, the lat- 

 ter often attaining the height of twenty feet. 

 Some species of Olea are also hardy, as well as 

 many of the Proteas, the whole of which re- 

 quire in our own island the shelter of the green- 

 house. Such is the case also with many species 

 of the genus Cistus, and among them I may 

 name crispifolius and formosus. I may add to 

 this enumeration, Yucca aloifolia, Dracocepha- 

 lum Canariense, Jasminum Az-oricum, Nerium 

 oleander, Clethra arborea, Daphne odorata, 

 Mimulus glutinosus, Correa alba, Melaleuca 

 hypericifolia, Gorteria rigens, together with a 

 very large number of the genera Ixia and Erica, 

 all equally requiring the protection of the green- 

 house, during the severer winter of our island, 

 and many of them subject to perish at that sea-? 

 son, notwithstanding this care. I need scarcely 

 add, that the Myrtle defies the utmost rigour of 



