Dividing/Planting Perennials - Spring or Fall?
I have several perennials which have gotten WAY too big. Usually I divide and replant in the spring, but I would like to get this chore out of the way this fall and maybe even purchase a few new plants. Do you prefer spring or fall planting? If you've transplanted in the fall, how has the winter survival rate been? I've planted dormant roses in early Novemeber, and planted spring bulbs, of course, but never done any other fall planting. Is it generally successful in cold Zone 4?