What maintenance do perennials need in the fall?
Generally, perennials should be cut back to a height of 1″and all foliage should be removed. A 2″ winter mulch should be applied to plants after the ground freezes, usually around mid to late November. It is important not to use heavy mulch or pile mulch on the plant crown, as this can cause crown rot. It is best to use woodchips, evergreen boughs, straw, or loose mulches and to avoid using leaves or grass clippings. Winter mulches should be removed in mid to late March, allowing new plant growth to emerge.
