PLANTS DIFFICULT TO TRANSPLANT AND THOSE ADAPTED FOR TRANSPLANTING AT SPECIFIC SEASONS OF THE YEAR : Page 832
The group of perennials which should not be transplanted in thespring consists mostly of those plants which begin their growth atthe first sign of spring, and before the ground is really in fit condi-tion to "work." These plants, by the time the ground is warm anddry enough to permit transplanting in friable soil, have developedso much growth of roots or of both roots and top, that unless they canbe immediately moved without any period of delay from their existinglocation to a new location they should by all means be transplantedduring the fall. If such plants are transplanted in the spring the usualresult is a check to growth and exceptionally weak development offlowers and of foliage during that season. The fall transplanting ofperennials ought to be done, especially with these early spring-floweringtypes, during September rather than during the latter part of Octoberand November, when the ground is cold and growth is completelystopped. Transplanting earlier in the fall enables the plants to startsome root growth and thus to establish themselves to better withstandthe winter conditions, especially in the soils containing more or lessclay. Especially should the peony, for any degree of success, be trans-