What kind of soil do rubber trees like?
Rubber plants don’t like to sit in water, so a well-draining soil is important. House Plant Expert suggests, in particular, that a “well-draining and well-aerated potting soil is needed. 1 part peat, 1 part pine bark and 1 part coarse sand (or perlite) is a good mix.”
Do rubber trees like to be root bound?
Rubber plants enjoy being a little pot-bound, which means that they like to have their roots crowded within their container. However, keeping them in the same pot too long will stunt their growth.