My neighbors have at least 3 or so Alianthus growing that I do battle with. Their seedlings are a yearly thorn in my side, heavy mulch helps but is not the cure-all, two are slowly dying, the other 2 are slowly splitting bricks between two garages…
Very happy with Trees of Antiquities, S&H almost killed the purchase, but their well regarded reputation on here cinched it for me and couldn’t be more happier. I have trees arriving from Raintree, Wafler and Peaceful Valley in the coming weeks.