I recently bought one at a show, and repotted to something more substational. But I am noticing at dark grayish area on the caudex. It seems ever so slighly soft. Please offer suggestions and what to do.
I have no idea, I just got mine about 6 weeks ago, it had no roots and looked like a green ball, I had mixed feelings that it would do anything so I laid it in the pot, and put dirt up halfway around it, watered it and left it alone other than watering, and this shoot came up in no time, I will take a picture later today.