Posted: 23/03/2014 at 20:52
How long has the MPT been in the ground? They have a long-ish tap root that you would need to keep intact or it will die. If only been in the ground a few years then give it a try, getting all the tap root. You will need thick garden gloves and thick clothing.
They can grow in pots, nursery ones are because of the tap root issue. Have seen 30+ year old ones in large pots.
They are only slow growing for the first 10-15 years, after that they speed right (esp in the ground) up as those with front gardens with a huge MPT taking it over will testify.