Flower beds are treated in much the same way but since perennials and bulbs are present in flower beds, they require a little more caution. Wait until perennial top growth has completely died back before preparing flower beds. Once the top growth has died, cut any perennials in the bed back almost to ground level (figure E) and compost the cuttings that aren't disease infested. Note: Don't cut ornamental grasses back until late winter or early spring. Wait until new growth is beginning to emerge from the base of the plant. Once the perennial top growth has been cut back, gently rake the existing mulch and add a thick layer of compost. Rake the mulch back in place and apply a brand new layer of mulch as well. The additional mulch will help to act as insulation for roots and bulbs during cold weather conditions and will help keep fragile shoots underground during periodic, warmer conditions.
Lawns
Lawns don't need much in the way of winter care, except for fall fertilizing. However, it is a good idea to keep the fallen leaves off the lawn, especially if the lawn remains green throughout much of the winter, because the leaves will mat down and kill the grass. Remove the leaves once or twice during the winter months, shred them and dump them into a compost pile. Or, if the leaves are dried out, use a mulching mower to convert them to mulch for the lawn.
Container Gardens
Container-grown plants and outside containers require special treatment during the winter. If an outdoor container plant dies after the first hard freeze, dump the plant, soil and all, into the compost pile. Use a machete to chop up the root ball for faster decomposition. In the case of hardy potted perennials, either transplant them to the garden or overwinter them in their pots by burying them up to their rims in the garden, or by piling leaves all around them. Keep leftover clay pots from cracking by stacking them and storing them in the garden shed, saving the task of cleaning them in the spring.