I just got a coffee plant that appears to be several seedlings in one pot. I've seen these sold like this from various other sellers as well, so apparently it's a thing. Am I supposed to leave them all in the same pot? I would think it would be better to separate them. Or would they do just as well all together?

This will be grown outdoors in the summer and brought inside in the winter (zone 7b). I'm not expecting to brew a pot, but it would be neat to get some flowers, and I'd like it to be healthy. I already grow citrus, etc. and so feel like I can handle it, and would like to treat it as well as possible.