Orlah & Neta Revay

I planted a passionfruit vine as a living fence. Do I have to wait three years to eat the fruit?

Two months ago we bought a dwarf lemon tree that says on it “from 2013.” We planted the tree together with the clod of earth that it came with, which only fell off a little bit. Do we have to start the orlah year count again? If so, can we uproot it and replant it, and in which way can we use its fruit without waiting?