I guess you bought a Sam's Club's box. I purchased the same package last summer and planted them in large containers together with Dahlias from the same box. I would not do it again - it got too crouded and Dahlias shaded Lilies. Lilies reached about 1' last summer, but they will probably grow taller. They did not have that reddish stripes as on the picture, just yellow, but flowers were huge (up to 9"), fragrant and gorgeous.
You can plant them in the garden in front of taller plants. Mine received morning sun for about 4 hours, maybe it was the reason for pale coloration. In your zone you will have to keep containers in the garage or basement for the winter.