I have my hydrangea planted above ground in a large pot. I an trying to find out what I need to do with the plant during winter so it will come back in the spring. I have read the winter instructions but that is if the plant is planted in the ground and the roots are underground. With the plant in a pot the roots are above ground and is at more risk of root freezing. What can I do with this plant so it will come up again each year?
