2 Introduction 



back each fall, new ones appearing the fol- 

 lowing spring. 



Quite a number of them are too tender 

 to be generally grown as hardy perennials, 

 but those that bloom freely the first year 

 like the snapdragon are treated as an- 

 nuals, discarding them when the season is 

 ended. 



Some biennials- those that do not bloom 

 until the second year, and then die may 

 be placed among the perennials and con- 

 sidered of their class, because they seed 

 so freely at the base of the parent plant 

 and bloom the following year, that their 

 presence in the border is nearly always 

 assured. The only thing necessary to do 

 is to transplant those not in the situation 

 you desire them to bloom in. RudbecJcia 

 triloba, one of the Black-eyed Susan type, 

 is not only a good example of this class, 

 but a charming plant that all should grow, 

 and, moreover, it is a very accommodating 

 one, doing splendidly in semi-shady places, 

 such as north of buildings or under weep- 



