Posted: 08/10/2013 at 21:54
I'm happy to be wrong on this but ceramic pots if for outdoor use, usually last the winter, some when bought will say they are frost resistant or words to that effect, not sure how resistant those are though to prolonged snow. My ceramic pots are fine, I've had some for years and we get snow.
Terracota pots need some protection, I tend to plant bulbs in these, wrap them in bubble wrap and from now until about February keep them in a sheltered spot. They can be in a more exposed spot but wil need protecting. I use mine sometimes twice a year for different plants ie spring bulbs will be replaced with gladioli or annuals.
The pots get a good clear in between plantings to get rid of any stuff on the sides and to kill any nasties which may have taken up residence. As regards compost and nasties, if the plants in the pots have been healthy I put used compost back into the compost bin or mix it with some fresh and add some form of feed depending on what is being planted.
Any sign of nasties in the pot and the compost is sent to the tip.