Probably 10 years old, at least. The last time I repotted it, it was necessary.......the bottom of the pot was so convex that the pot didn't sit straight any more. LOL
Here were the roots when I took it from the 16 inch and put it in the 20. Oh, maybe I shouldn't post that here........I am hijacking the original poster's thread.
Bubbles, no cow poop, I use Miracle Grow...........LOTS of it. And lots of urea for my ferns and non-blooming, foliage plants. Last summer I started mixing it all up in a 5 gallon pail and watering "by hand" instead of doing it with the hose-end feeder. It paid off.