they have plenty of air, as the plants are very delicate, and 

 are apt to damp off. The autumn sown plants will flower 

 about the end of May, those raised in the spring not before 

 the middle of July. They continue a long time in flower. 



It may be grown in the open border, if planted in a 

 warm and dry situation, after the danger of the spring frost 

 is over. 



