Awww. Yeah, critters love hosta. They should do fine in a large planter. Pretty sure they'll need winter protection though if you go this route. Heck, you could just bury them before the ground freezes then pot them up again in the Spring.They'll be destroyed by the deer unfortunately. I've found a few places saying that they can do well in pots though, so I might get some totes for them since these ones aren't the super tiny varieties I think