Multiply by dividing: perk up your perennials--and get more plants for free. (Garden). From: Sunset | Date: November 1, 2002| Author: McCausland, Jim | COPYRIGHT 2002 Sunset Publishing Corp. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

Division is the easiest way to propagate new plants from existing perennials. Most clump-forming perennials benefit from division every few years; without it, their bloom and flower size start to decline, especially near the center of the plant. Reinvigorated by division, established perennials typically produce more and larger flowers.

The list below indicates which perennials to divide in fall. For those not included, the rule of thumb is to divide spring-flowering kin...