Here are definitions for some of the terms we use on the web site. Many perennials require division every three or four years.
Division is an easy process and an excellent means of obtaining new plants.
With a shovel dig-up your perennial. Use a spade to cut through thick roots that may have spread far beyond the crown of the plant. Gently lift the perennial out of the ground. Using a sharp blade, cut the plant into several pieces, each piece should have a healthy section of the plant s crown and at least one root shoot. Plant the healthy segments immediately and generously water them.