Can I plant it anywhere else?
Poor thing is a fast-ish growing davinia involucrate otherwise known as a handkerchief tree.
Very beautiful but also fairly large (states on label 15m height, 10m spread but elsewhere indicates up to 25m height - we have a 60ft garden)
It was the last one at a huge nursery and has clearly been there for many years and was trying to root itself through the bottom of the pot.
I cannot leave it there to be potbound for ever, it's like bonsai, I just can't do it 
They are bringing it this week - I was going to cancel it but I can't be that cruel - trouble is, I don't know anyone with a bigger garden that would take it. We did have till we moved a few months ago, an enormous garden, but we haven't now.
Can I go and dig a hole somewhere public and plant it there?! (half serious question) or else somehow keep it smaller than it ought to be so we can have it? obvs without actual bonsai involved 