268 PLUMBAGO LARPENTiE. 
A cool dry pit will probably be found better than any other situation for preserv- 
ing them through the winter. Set the pots on a layer of sifted coal-ashes or other 
dry surface, and allow them to be exposed to as much air as the weather will 
permit. 
Water must be supplied very sparingly through the winter, and by no means 
must the leaves be wetted. In spring, when the growth begins, they may have a 
fair quantum afforded if the drainage is good. 
As the spring frosts begin to subside, expose the plants to the open air every 
fine day ; this will harden the wood and prepare them for their summer quarters in 
the flower-garden. 
When the parterre may with safety be furnished with Verbenas, Heliotropes, 
and Pelargoniums, this plant may occupy one or more of the beds, than which 
perhaps none will be found more suitable or produce a more pleasing effect. 
Propagation is effected by cuttings, which are planted in sand, and treated like 
those of Verbena and other similar plants. 
The generic name is derived from plumbum, a disorder in the eyes, which some 
species were formerly supposed to cure ; and the specific name was given by 
Dr. Lindley, in compliment to Lady Larpent, at the request of Messrs. Knight 
and Perry. 
The annexed vignette is a very good representation of the habit of this very 
desirable plant. 
