I'm growing the Crossvine on a cattle panel bent into an arch. A little hummer resented me standing under this morning. Afraid I'd eat her food I guess

. She buzzed around my head a few times and decided I wasn't going anywhere in spite of her efforts. They are so territorial and for such tiny things can make quite a buzz about defending it! Do they ever do any pruning on the Crossvine? Mine's been too young to do that, but I think maybe next spring some discretionary hacking on it might make for a thick fuller vine on the arch.
Hackberry trees are a pain. Wisteria can be as well, but it's beautiful when it blooms well. If it's growth is not curtailed assiduously, it can be a rank, invasive, strangling plant otherwise. I had one at a rented house once and I never want exposure to another one. I'm content to see it in other places.