Have heard that it takes two to tango. Do I need a second apple tree somewhere nearby to pollenate the apple tree I already have? Found a seed germinating in an apple I was eating year and half ago. Planted it, set it on my window sill and by spring last year it was ready for the great outdoors. A fast grower, it is over 4 feet tall now. So, if I need another, I'll want to get one near the same size. Know they'll cost more for larger ones.