In relation to one of your previous questions about a frost damaged cornus controversa, I also have one (planted in January) that got frost causing all the buds to go black. I removed some of these tips but even at this late stage there is nearly no leaves on it. Apart from a few black spots the stems seem healthy. Is there anything I can do to improve it’s chances? Also is there any point trying to grow paulownia this far north for flower display?