If its rooted. Cheryl, it needs to be potted. I pot up all my cuttings in 1 gal. pots, but I do that simply because I buy 50 at a time and have lots of them.
I ship many plumeria that have inflo. I just put a bunch of shredded paper around that inflo before wrapping it in newspaper. I do that with multi-tipped plants too so that those tips will have something between them if/when pressure is applied to the tips. My plumeria are shipped semi-bare root.