John Polk wrote:
It appears to me that the Raintree Nursery link is giving some bad information. When they state the Queen Cox is the only self-fertile apple, they must mean the only one they sell that is self-fertile , as there are dozens of self-fertile varieties. In my other post, (https://permies.com/permaculture-forums/7503_0/woodland-care/self-fertile-apples) I linked to a list of 5 dozen varieties.
Here is more info on self-fertile apples (the second link gives descriptions of varieties they sell, and include pollinization requirements if required)