Here is a common hackberry ( Celtis occidentalis ) that I intend to collect early this next spring. It is growing on the edge of a creek behind our home where soil has eroded over time. Consequently, this tree has a dramatically buttressed trunk that forms sort of an elongated oval when viewed from above.
I made the potential mistake of cutting it back hard once the leaves had mostly dropped (no useable branching anywhere near the base). I sealed the wound and after several weeks it appears to be healthy and alive all the way up. I know common hackberry are very hardy and vigorous trees, but should I be concerned about dieback over winter? Would It benefit to wrap in a blanket for potential nights sometimes dropping to -10 F?
Ideally, I would let it recover there for another year to gain energy and branching, but I may not be living here by next spring, and I don’t want to lose out on this potentially very powerful and interesting tree.
Any suggestions on collecting this one? My main concern is how to deal with the roots that are growing sideways into the steep bank to anchor the tree. The soil is sandy and relatively loose which should help. It will definitely need a custom box to plant in.
Any other advice or thoughts are welcome! I am very much a beginner in my first year, and I am dedicated to bonsai now and doing right by all of my trees.