How do you keep your rosebush from spreading?

The key to it is buying the right rosebush. I know, because I made the same mistake! I bought the roses that I have based upon their appearance and smell. While that's the right thing to do if you don't care how wild they grow, it's not the right thing to do if you're worries about spreading. Check your roses for their tag, and see if it says, "Climber", or "Trellis" rose. That means that no matter what you do, how many times you prune it, (even to the ground) the dang thing will find a way to get out of hand. There's a rosebush in my mother's yard that I've cut down to the ground several times, and it keeps coming back! I thought I'd injured it beyond repair! I cut at the roots, I pulled up the stems, I chopped at it with a weed whacker. Nope. It grew new stems, and is now invading my Mom's yew bushes and growing into the neighbor's yard, it's thin climbing stems stick out of the bush as if to say, "Nyah, nyah! You can't get me!" And i can't because now it's so far under the fence that it'll be impossible to dig it up. Get yourself ANYTHING but "climbers" and "trellis" roses, and you'll never have that problem. A regular rose bush can be pruned and will stay trained! Good luck with your garden! You must post a few pictures when you've got the rose planted! :)

Prune it. I know some people who cut their roses to the ground every year. Pruning is the way to control plants. You might want to get a book on roses.

We have something called a "Rose Shrub" which only grows about 6 feet tall, but it sure spreads out. We cut it down every year back to nothing, and every spring it comes back. I hope you don't have a Rose Shrub!