If these are similar enough to Asiatic lilies (a hybrid of about 10 different species), they'll be incredibly tough. I have mine in containers in zone 7A, but last year something got in to one of the containers and dug a big hole, knocking all of the bulbs and stems everywhere! I tucked them back in and covered them back up... they did just fine.
If you just have bulbs then they won't bloom this year; one of my pots have already bloomed and another has buds that are about to bloom. So there's not enough time for them to come up, but they should survive for next year.