What Is A Perennial? A Perennial is a Plant that Reliably Returns Year after Year. Coneflowers Are Perennials Black-Eyed Susans Are Perennials What Is An Annual? Annuals Only Live One Year. Generally Speaking, They Must be Replanted Each Year. Bachelor Buttons Are Annuals Zinnias Are Annuals Almost all Vegetables Are Annuals In most cases, all…