sweet cherry leafing out after a winter with a dozen nights at -38

sweet cherry leafing out after a winter with a dozen nights at -38, max -40C. leningradskaja grafted onto pin cherry about five ft off the ground. it's short because I cut back 3/4 to save and regraft, didn't exactly expect it to survive. so fun to have some sweet cherry growing, added a dozen more grafts in this location including a couple other varieties