I realize this question was already answered, but I wanted to point out one of my favorite roses known as the "Rosa Rugosa". This rose has tons of prickly thorns! The stems are full of tiny thorns making it a hassle sometimes to pick up trimmings. For that, I suggest purchasing leather garden gloves. However, don't let that scare you away.
The Rosa Rugosa makes a great hedge for several different reasons. The best part about it is the scent of its blossoms which are blooming constantly in the summer months! Because of its nice spread and thickness as well as the stems covered in thorns which all prove to be great defenses against garden rodents. Also, you can put as much work into them as you want. When left untrimmed they can grow up to 8 feet tall. Or you can trim on your preference because they bounce back well with new growth.
I have always typically found growing roses to be a risky business. However, with the Rosa Rugosa that's not the case at all! It's considered one the hardiest roses out there. The only trick to keeping your Rosa Rugosa healthy is to make sure it has GOOD DRAINAGE!