can sasafras trees be kept in a pot indoors?

Answer 1

A) Sassafras may die if not well protected from extremes of winter weather.
B) Sassafras is classed as intolerant of "Shade at all ages".
If it will fit indoors, then go ahead and bring it in, but you should do a couple of things first.
C) At least 15 species of insects attack Sassafras, including root borers, leaf feeders, and sucking insects, including the Japanese Beetle - its main predator. (SO) Use, Ortho Bug-B-Gon Insect Killer, or Spectracide Bug Stop Multi-Purpose Insect Control, Sevin, or other brand names, check on the label. But use first, to kill any insects that is on your Sassafras - Then bring indoors.
D) Have an excellent light source available.
Good Luck.

Answer 2

I think you'd have a hard time with it, as the light would definitely be a factor. If you have very bright light you might be able to keep the tree, but it would probably not flourish and would be weak (open to insects and disease.) The other problems are humidity and temperatures. Sassafras trees grow in a temperate climate and need both high and low temps. Having said this I think if you had an unheated sunroom the chances of survival would increase. Good luck if you decide to experiment. Think about bonsai and try some of the techniques used.