I have two sky pencils we purchased in the middle of the summer and have in pots on our 2nd level balcony. They are abotu 4 ft tall but have experience a lot of wind burn here in Chicago. The leaves are all dry and crunchy despite being wrapped in burlap. The sky pencils down the street have nice green leaves. I scratched some of the lower limbs and they are still green inside. Are these plants likely to survive? I paid $125 for each of them. If they do live how long will it take the leaves to come back?