They come back just fine after cows prune them. Something to keep in mind if you live in the country(-: Every now and then a cow or cows will get in the yard some how and go to town feasting on my roses! This spring it was the forsythia. It was really pretty until a cow decided to break the whole thing off at the ground. So is the life in the country. If its not one thing its a half dozen others! Happy Thursday!!!!