This is a Potentilla I purchased this summer. (excuse the outdated pictures) Beautiful white flowers, and a lovely base with potential! Now, I'm looking to make this into a lovely small tree. Currently it's in a large 2gal nursery container, but I'd like to put it into a small pot that really highlights the width of the tree. I know Potentilla can take quite a beating, but how trigger-happy can I be? I don't mind taking my time reducing the rootmass over the years (they are coming out of the bottom of the pot) but I'd like to know if there's a better point to stop at, so as not to kill it. I'll post updated pictures of it tomorrow when the sun's shining.