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…

Overwintering potting soil and annuals

I  have, courtesy of a neighbour who was moving, Scotts Premium Garden Soil, three 28.3 L bags, minus about 1/4 of one bag. Would it be possible to store these bags on my balcony now and over the winter and…