Can someone please tell me the best way to do this. Our garden has overgrown and the roses are all tangled together. I think I can unravel some of it, should I cut them back, I dont want to as a lot of them have loads of buds on, or can I just tie them along the trellis behind them so they climb?Trouble is all the gardening books talk about tieing them in when you first plant but not when they are well established.
Thank you