Cut any remaining debris down in the garde or flower bed. Cut perennials back to about 5″. Tall stems left to blow in the wind can damage perennial crowns. Leave ornamental grasses to provide winter interest until spring.
Put rose collars around your roses. Fill with mini bark chips.
Use Second Harvest Mulch in your favorite color on your perennial and bulb beds after the ground freezes. Mulch conserves soil moisture and helps minimize freezing and thawing of the soil.
If you had powdery mildew, black spot or any other fungus diseases on your shrubs, roses, trees or perennials, be sure to clean up all the leaves and debris and dispose of it. Do not put this material in your compost pile. In the spring spray new leaves with a horticultural oil spray.