I have a grafted Deshojo in the ground. I sat it where I was going to plant it for 6 weeks , then planted it. no problems . I planned on airlayering next spring. It is about 18 inches tall. I was going to only airlayer one branch and let it grow to 6 feet. for more airlayers. To make a long story short, about 2 weeks ago here in Ohio, my leaves started curling up and browning. Now all the leaves are brown and look dead.. Do Deshojo's go dormant this early or is my tree dead??