when should you stop fertilizing roses
When selecting roses, always select cultivars that are able to tolerate the coldest temperatures in your area based on USDA hardiness zone maps. One of the ways to protect roses for the winter is to be sure they go completely dormant. To accomplish this, stop fertilizing early enough so growth slows down. No fertilizer should be applied after August 15. To further encourage dormancy, stop dead-heading or cutting flowers after October 1 and allow the plant to form hips. There are many methods to provide winter protection for roses.