All of our large established trees survived at our house in town and at the farm (in Kansas). Of course, they are used to a few days of 0F almost every winter. I think 0F to -15F is less of a shock than you guys got in Texas where the trees are not adapted to temperatures well below 32F.
I hope my 1-2 year-old trees out at the farm survived. My new plantings always green out much later than the large trees (regardless of species). I saw buds last weekend, but I feel much better when the leaves pop!
The American Plums have already bloomed in the country, and the Sand Hill Plums are just about to bloom. I did get snowed on while working in western Kansas on Friday. I think our trees are adapted to "crazy" conditions in the winter and spring.
