I have a tree which was at one point three trees in one. I believe it was apricot, nectarine, and peach or something like that. I'm not sure exactly but it was those types of fruit. Anyway, the tree got chopped down to the ground carelessly by someone, however the tree survived. It came back, however I am almost positive that the grafts are no longer with the tree and that the tree is growing solely on it's own root stock. I haven't seen any fruit yet and it has been years, otherwise I wouldn't be asking you here today what kind of tree this is. My guess is that it is a flowering apricot because the flowers look strikingly similar, however I would like someone's opinion who knows more, I am not very familiar with fruit trees. Don't get confused by the leaves in the background, it is a boxwood hedge behind the plant. The actual apricot/nectarine/peach tree has no leaves at the moment.