Cliff has been a great help to me as I learned about persimmons. The cold snap here was not as bad. It did not harm any of my persimmons as far as I can tell. It did hit other trees. Some of my chestnuts had leaves when the late cold spell hit and those leaves are now brown and dead, but it was early enough that there are plenty of buds that had not yet opened. At my home, I noticed something interesting. I grafted a bunch of M111 and potted them in 3 gal RB2s and put them on my deck. I did not start them under lights this year. Eventually, all but 2 of them leafed out. I also had a few trees I grafted on M111 and potted up last year where the grafts did not take or where they took but did not have enough growth to plant. For the failed trees, I let the root stock grow out.
I regrafted that root stock when I grafted the new M111. Some of the trees had 3" of growth when the late cold snap hit us. All of the newly potted M111 grafts died as well as any growth from the rootstock. On the other hand, the M111 that was potted last year had no issues. Whether regrafted this year or not, they are thriving on my deck.
I think this goes to show how trees can handle a single stress pretty well and recover, but when they are hit by multiple stresses, they struggle.
I feel very bad for Cliff and his family. Probably the only upside is for folks up north if he is able to stay in business. His persimmons that survived, have demonstrated some pretty good hardiness. I know a friend of mine had been emailing me for a while asking me questions about propagating persimmons. He had some property here as well as up north. He had found a few persimmons up north that survived in some pretty cold temps. He was interested in crossing some of them with trees with known characteristics looking for more cold hardy persimmons. His theory was that up north where persimmons are uncommon, a heavy bearing persimmon would be a huge deer magnet. I'm not sure I agree with his theory, but I hope he is successful. If he is reading this, England's may be a good source for him in his project in the future.
Thanks,
Jack