Ideally, perennials should be lifted, divided and replanted every three to five years. You'll be rewarded with healthy, vigorous growth and a crop of new plants. Plants should be divided when they ...
Cut back yellowing foliage on hardy perennials such as daylilies, crocosmia and asters. It will make the garden look tidier and stop pests from using the leaves as shelter over winter.
Until recently, gardeners have paid little attention to the ecological requirements of perennials when planting them in parks and gardens. This book describes a new way of using perennials in parks ...