Answer: Your pink roses are grafted, with the desired rose being grown on a different rootstock. The red rose you are seeing is the rootstock. The rootstock has begun to send up canes and will overwhelm the desired rose. You need to prune out the canes that are different. Cut them off as short as possible. You may have to (gently) dig down a little to cut them off. Depending on how deeply the rose was planted, the graft may be at ground level or several inches below ground. Every spring, check for and remove any new growth trying to start from below the graft. During the season, if you see the different looking growth from below the graft, remove it immediately. Good luck with your roses!
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