92 



ter, by covering the ground about them with old tan, or other simi- 

 lar substances. 



Where the seeds can be procured, plants may be raised by sow- 

 ing them either in pots or on warm borders; in the former method, 

 forcing their growth by plunging them in mild hot-beds. 



These shi ubby plants are suited for aflbrding variety in shrubbe_ 

 ries and other places, both on account of their fragrant smell and 

 the beauty of their flowers. 



