Specialty Gardening: most durable winter containers (materials used in manufactur, 1 by revclaus

revclaus wrote:
I use foam pots too. They're big, and I don't do anything to them in the winter. I leave my perennials in them, plant spring blooming bulbs in them, and leave them empty too. Our extremes here range from about -10F to 100F. I've had them for about 7 years. I also use ceramic, but I empty them. Terra cotta chip or crack after a few years. I also use the resin and fiberglass. I like the foam best because they seem to insulate the plants from the temperature extremes better than the others.

These are my foam pots.