So glad that I found [a previous] discussion on this plant. We have a ZZ which was needing some attention after being in the original container for probably 7 years. It was given to us for my father-in-law 's funeral. My wife didn't want me to kill it. So after doing some reading online, I assured her that I could easily and safely divide it and it would be reinvigorated. So, out it came. The roots were packed together with hardly any soil. The roots looked healthy enough, but I really didn't have any tubers like I see in photos. So I divided the main tuber, kept the part I wanted, and replanted it back into the original pot with new cactus soil. Not wanting more than one plant, I gave the other parts away. The past I kept started turning yellow and dying out. One large leaf has now flopped over to the side. It looks healthy enough though. I'd like to use this for propagating. What is the surest method for doing this? I watched some on YouTube and as always, there are conflicting accounts. What do you all recommend?