I repotted it last year into a pot that was about a foot wide. At the time, that pot was about twice the size of the original. Well, my plant grew like a weed. I knew that it was pushing against the walls of the pot, distorting it. I finally got around to repotting it the other day and I found out that it had wedged itself into the pot. Even some of the decorative rocks on top were wedged, too. I had to get a tool and force them out. I couldn't pull the plant out, no matter what I tried, so I finally decided on trying to wash away as much of the old soil as possible. I laid it on its side and blasted away all that I could, and this is what it looked like...
With the new pot being rather large, I mixed in some orchid bark, along with the soil that I always use, to help increase the drainage. Several hours later, and I'm glad with the end results. I thought that I was never going to get finished, HaHa! But, it was a labor of love. If I'm lucky, this pot will hold out for at least one year, before my ZZ plant outgrows it. It's so large and heavy now, I guess I'll just have to place it on one of those plant stands with wheels. While repotting it, I noticed signs of new growth already beginning to emerge. I can't wait to see how large this plant gets. As if it isn't already large enough as it is. :)