364 THE GREEN-HOUSE. [chap. xi. 
thus treated, they will do very well in the 
open ground. In warm dry situations, they 
may even be suffered to sow themselves in 
the open ground, and will come up and 
flower abundantly. Treated as greenhouse 
plants, they are, however, all shrubby, and 
will last several years. When intended to 
be kept in pots, the seed should be sown on 
a slight hot-bed in February, and the young 
plants pricked out into very small thumb 
pots, as they are called, while in the seed 
leaf. In these pots they should remain 
either in the frame of the hot-bed, or in a 
room, or green-house, for about a week or 
ten days, and they should be then shifted 
into somewhat larger pots. These shiftings, 
always into somewhat larger pots, should be 
repeated six, eight, or ten times, if the plants 
are wanted to be bushy; and not more than 
four, if the plants are wished to grow tall. 
The bushy plants will flower abundantly, 
without any support; but the tall-growing 
plants, which are suffered to flower in com¬ 
paratively small pots, must be trained to some 
kind of frame. When the tall plants appear 
growing too straggling, the extremities of 
