Clay plant pot in terracotta, ensure good water drainage in the pot so that icing caused by waterlogging cannot burst the pot, the bottom hole should be free and, if necessary, covered by a potsherd that curves upwards so that the water can drain off well Put the pot on its feet, the pot cannot freeze to the ground and water can flow off in all directions, if possible place the pot in a place that is protected from precipitation and draughts, this way you avoid soaking and the risk of damaging ice formation