Insulating Plant Containers on a Balcony

I have a 7th floor balcony which is exposed to SW and NW winds as it is on the corner. I have heard that you can line a container with styrofoam to help plants survive the winter. Do you just…

Winterize ornamental grass in container

I live in Ottawa, and would like to do some container planting with ornamental grasses, specifically Hakonechloa macra ‘Aureola’ or Golden Variegated Hakone grass. I have no space to sink the plants into the ground for the winter. Is there…