I'm half a page behind, you both sure have something else to work from than a simple laptop.<quoted text>not sure where you are, but in Minnesota many perennial bulbs won't work in pots unless you bring the pots into semi-cold storage for the winter as they soil will get too cold in the pots if left outside..
many of our non -bulb perennial plants have the same problem. they can survive the -50f in the ground, but no in a raised bed or pot.
For two winters i wrapped the tree and the pot. The roots develop very fine, where i know that in an actual garden a trumpetleaf tree can have solid wide spread roots and enormous leaves. Great to sit under in summer. But in a pot the growth is stumped, that's how you get ever smaller plants.