Grapes

Dont think I´ll be making my own vine this year but ohhhh my ohh my how I look forward picking these grapes. They are still small but I hope they manage to grow for me this summer. Got loads of bunches like this on my wine. Got 2 plants - purple and green and I have no idea what they are called. My uncle didn't have room for them and gave them to me. Now they have their roots in the ground and I´ve been pruning and cutting. Really don't know what I'm doing though :s

H