'flir'&tsf Supplement is designed to 
go with my spring catalogue, and 
while it offers a good many kinds which 
should be planted only in autumn, such as 
the Narcissi, Tulips, etc., it does not offer 
a large number of the herbaceous perennials 
which may be set in either autumn or spring. 
For these please see my catalogue, which has 
been mailed you. Many of the hardy peren¬ 
nials 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 winter, and prevents the heaving by 
frost. Some of the Irises treated in this way 
do finely, which, without this protection, 
would hardly survive a severe winter. When 
perennials can be set early in autumn, and 
get a little start before winter, they give more 
and better bloom the following season than 
when the setting is left for late spring. It is 
very important, however, that the plants be 
sot early enough to enable them to get some¬ 
thing of a root growth before cold weather. I 
would not advise late setting for any of the 
herbaceous perennials. 
