INT'R.ODUCTIOJV 
Most of my customers, I think, understand that this 
supplement is intended to go with my spring catalogue, 
and, though it offers kinds which should not be set in 
spring (Tulips, Narcissus, etc.), it does not include many 
perennials which are often set in either spring or early 
autumn. For such, please see my spring catalogue sent 
you last spring. 
Many of the hardy perennials may be set with success 
in autumn by mulching with fine straw or leaves, which 
keeps the light and sun from reaching their roots in win¬ 
ter, and prevents the heaving by frost. Some of the Irises 
treated in this way do finely, which, without this protec¬ 
tion, would hardly survive a severe winter. When per¬ 
ennials can be set early in autumn, and get a little start 
before winter, they give more and better bloom the fol¬ 
lowing season than when the setting is left for late spring. 
It is very important, however, that the plants be set early 
enough to enable them to get something of a root growth 
before cold weather. I would not advise late setting for 
any of the herbaceous perennials. Lilies for the most 
part may be set until frost prevents. 
