I started some seeds from a Gala apple at the start of this year, mostly just to see if they would grow. They did. I have four of them about 10-12 inches tall now. I'm now interested in keeping them and have planted them in large pots for planting next year. I've read a lot about root stock and not getting good apples starting them from seed. Would buying a tree from a reputable source and planting this tree with my others for pollination ensure good Gala apples or at least better my chances? Thanks for any advice.