Bought this house Halloween 2012, on the back porch is two rose bushes. I've never dealt with them before, and I probably should have done research but just never did. Flash foward to 2014 and the one bush is out of control. My mom said this fall to trim it, is there a certain way to do this with roses? I'm at the point where I just want to dig them up. I don't have a green thumb, I'm just worried about killing them.