Late summer/early fall is an excellent time to plant many perennials. It also is a good time to move or divide perennials, such as peony, daylily, garden phlox and Oriental poppy. Perennials planted in late summer or early fall should be mulched with several inches of straw, pine needles or other materials in late fall. Mid-August through September is also an excellent time to plant pine, spruce and other evergreens. For more information check out - http://www.theiowagardener.com