There was a hybrid tea rose growing in my yard when I moved to Marin County in 1994, a bush about 5-7 feet that had been in the ground quite a while without much recent pruning. After a couple years I realized that the spring blooms are red (almost as dark as Don Juan) and then later in the summer (on the same canes, not root stock suckers) medium pink. Both flushes of bloom are single rose to a stem, fully double, long buds typical of hybrid tea. Because it has grown up so much and is behind a small tree, I can't be absolutely sure that the second roses are on the same canes but I think they are. The blooms hold their color so that there are never two colors on the bush at the same time, always all red or all medium pink. Is this possible or could it be two different roses were grafted on the same root stock?