Are the forsythia’s blooming? That is a signal for rose pruning season to get started, so February is the time to prune rose bushes. When the plant sends out ¼-1/2” new grow, dormancy has broken. Pruning a rose bush prepares it for the next growing season. It sets the stage for the plant’s energy to be directed into the strongest canes. Start the process by cutting out the diseased, dead, or weak canes, to give the rose bush a healthy foundation for new growth.