Gardening with Perennials
Fall and winter care for your perennials. Information provided by the University of Illinois Extension.
Maintaining a Perennial Garden and Preparing your Garden for Winter
Two great sources from the Better Homes and Garden website.
An in-depth, online tutorial guide broken into six classes. The Learning Garden is a project of the National Garden Association.
A great overview of growing perennials, developed by The Gardener's Supply Co.
More resources added regularly...