I'm trying to track down a good
reference showing ripening times for a wide range of heirloom
apples. Books like 'The Book of Apples' certainly offer a lot of
this information, but I can't help but wonder if their info is based on a
different USDA Zone. If it is, how does one adapt this info to fit their
own Zone? I've seen a few ripening charts in books and a couple
online, but very few seem to address the more obscure apples.