Hybrid tea & floribunda roses
Treat these varieties with a final fungicidal spray prior to the winter season. Cover the crowns with a mound of soil about 6" high, then cover the plants and mound with straw. You don't need to trim back hybrid teas and shrubs unless you live where winter winds are strong.

Tree roses
In areas where winter temperatures are below 10º, remove any stakes and gently dig away soil on one side. Bend your tree rose downward to the ground and cover it with straw first, then soil.

Climbing & groundcover roses
Cover the base of your climbers with soil. Ties the canes and wrap them in burlap. For severe-winter areas, anchor the canes to the ground and cover them with straw.

General winter preparation:

Let the last blooms of the season stay on the plant to form hips. This will slow down the growth and help your plant go dormant.

Rake off and remove all leaves from the rose bed to prevent diseases.

Apply a dormant spray or oil such as lime sulfur to help get rid of diseases that may return in spring.

Continue to water your roses regulalry if you have little or no winter rainfall.