New to forum and couldn't really find an answer to my question.. Typical in the south, a Ficus elastica (rubber plant or tree) is sent for funerals. My grandmother had one that she had received via a funeral about 14 yrs ago. A yr and half ago she got to where she could no longer take care of this plant, she had it in a pretty big pot and had always left it out during the summer and inside during the winter. I have seen where it cannot be planted outdoors in my area due to frost, but I am at a loss as to what to do at this point.. The roots have came up to the top of the soil and rounded around this plant. When I got it, I got a bigger container and replanted with new soil and covered all the roots. the roots wrapping around this plant at the top are about 2 inches in diameter. the actual plant is about 3 foot tall from the top of the container. Do I need a bigger container or can I safely cut the roots off without harming the plant?