Thanks. We had a much older one in my old workplace and it was also in a taller pot (to accommodate the weeping leaves which hung down to the floor) and as I recall the caudex (new word for me) was huge and not that far from the sides of the pot. I took on the responsibility to water the plants between visits from our Plant Lady and she told me to be pretty stingy with the water because the caudex stored water for later use. Sounds like repotting in the spring with some root pruning should do it for this guy. How much does one prune on the roots?
