Walking through the Maine Heritage Orchard in Unity, Maine, is like walking through a Noah’s Ark for apples. The orchard, maintained by the Maine Organic Farmers & Gardeners Association, is filled with endangered apple varieties grafted onto stock apple trees, sometimes up to ten varieties on a single tree. The names and colors of the varieties are like nothing most fruit growers have ever seen. John Bunker can rattle off the histories of these varieties with ease. He’s responsible for saving many of them from extinction. An orchardist for Fedco Seeds, Bunker has been tracking down rare apple ­varieties for […]