I just yesterday ripped my two foot tall jack fruit trees out of their pots and threw them away, It just seemed pointless keeping them. I still have my biggest one and a Mamey Sapote in pots, but I'm thinking of tossing them too. Being in a climate where it is far too cold to ever hope to get fruit from them, I just had to bite the bullet and do away with them, despite my caring for them all this time.