Approx. 20 yrs ago, I planted a very healthy Tamora--well, we moved on and we use the house for a rental.. Know one has ever take care of the yard--even less the roses.. Well, it only has one cane but--I noticed roots ABOVE th graft and very little roots system below the graft.. Has this turned into an own-root? How can I reclaim a once beautiful rose bush?? Should I try rooting some from the one cane?? It holds no real sentimental value.. Just like the rose..