Hi, I've just discovered this forum while searching for the root stock plum that our Mirabelle plums must have been grafted upon. So it appears they are St. Julien, I had thought they were a gage and really haven't used them as our Mirabelles produce so well. This year with all that's happening in the world, and the St Juliens produced an exceptionally heavy crop, I decided not to let the foxes, skunks, deer and birds have them all!
I am finding them a bit tart and am going to try various methods of harvest, from juice and sauce to freezing them for plum cakes. I saw drying was mentioned as well. Thank you for all the information so far : ))
I haven't looked to see if I can post pictures of our trees and fruit.