I would pot it up into a good free draining mix (slightly moist) at the same depth it was when in the ground. Leave it in a filtered light situation for 5 days and give a some water after 3 days.
Letting it rest in the new pot before watering will allow any damaged roots to heal prior to watering.
Rick
"Many times a day I realize how much my own outer and inner life is built upon the labors of my fellow men, both living and dead, and how earnestly I must exert myself in order to give in return as much as I received"
Well I would ask how deep was it planted, it looks so white, thinking maybe it was planted too deep, I would try shallow planting , but then I just do things my way
Name: Melissa E. Keyes St. Croix, U.S. Virgin Islands Zone 11+
Our Jim had one he named "Long Tall Sally. It was one or two stems, taller than six feet! There are a few really old ones here on St. Croix that are six or seven feet tall. They eventually branch. Look like small trees at 30 years old.