Over-wintering potted Hellebores
I just bought potted Hellebores on clearance. They are healthy, evergreen, zone 4-9, grown by Bay City Flowers Co. in Hana Bay. The problem is that they were in the store as Christmas plants and the ground outside is frozen. I currently have them in an unheated attached garage that is just above 30 degrees F. Since they are tolerent to -10 degrees, I'm hoping the garage (by a bright window) will be okay for them until spring. Even the compost pile is frozen or I could sink them in there. Does anyone know the best way to keep them until the ground thaws?