These look like lilies. 😁 To be a little more specific, either asiatic or oriental lilies. I wouldn't worry because they are coming up in the winter, I live in zone 7b and mine have been doing this for years. Of course at first I freaked out and thought the cold would kill them! If you do get some night time temps of below around 25 to 20, just throw some leaves on top of them. I promise it will really be exciting to see them bloom in the late spring/ early summer and what colors you will have!
