Q.Morton Bay figs in pots
I have a Morton Bay fig in a pot which is where I intend to keep it. However, I recently discovered that the roots had escaped the pot. It needs to be repotted and I want to know is there anything I can line the pot with to keep the roots in but let the water drain?
I would visit the garden center and find an adequate sized and sturdy pot for your potted Fig Tree.
Here are some links with good information to help you get started.
https://www.gardeningknowhow.com/edible/fruits/figs/potted-fig-tree-pruning.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm
https://www.gardeningknowhow.com/edible/fruits/figs/growing-figs-in-pots.htm