Q.Ponytail plants
I have a very old ponytail plant,20 plus years, and it is not doing well. To big for me to repot. There is one pup growing out of the trunk, nothing from the base. How do I “excavate” that pup? A picture would be best. The plant has produced other pups , all coming out of the trunk, which I just sliced off and threw away. Thank you, Joyce

This link will help you.
https://www.gardeningknowhow.com/houseplants/ponytail-palm/propagating-ponytail-palm-pups.htm