Divide Perennials in the Fall by Mary Salinas Posted: September 9, 2015 Leave a Comment After a few years, many perennial plants have grown so large that they need to be divided in order to be revived. Overcrowding causes them to bear fewer flowers and, sometimes, to die in the… Read More Category: Horticulture Tags: black eyed susan, cast iron plant, crocosmia, daylily, division, flax lily, General Gardening, liriope, Native plants, Panhandle Gardening, perennials, propagation, prpagation, stoke's aster