How to 'cover' hydrangeas for winter?
I have three large "Endless Summer" hydranges in fiberglass pots on my deck. I am planning to cover the pot itself with burlap and plastic, and spread mulch all around the base of the plant (where it begins growing out of the soil). Do I need to cover the branches as well? Can they be covered with the burlap, or will that prevent needed light from getting in? Also, right now there are still old blooms on the plants. Should I prune those or leave them be? Some forums advise cutting the plant down to about 12" tall, while others advise no pruning for winter at all. I also can't seem to find any consensus on whether to cover the branches or leave them exposed. Many thanks for any suggestions!