This is all just my opinion gathered from my experience. I have been
gardening a while and have never had any luck with potted tomatoes. I
would suggest finding a place to put them in the ground. I know pots
can be done but down here in Texas I think the plants get baked in the
afternoon and never do well. They grow great in the ground. If you
are new to gardening I don't want you to get discouraged by potted
tomatoes.
Good luck and have fun.
James