What makes a clay pot get slimy on the outside?
I've had a couple of flower pots, terra cotta ones, which will sort of sweat, then get slimy and feel cold.
They have holes in the bottom, the water drains, but it is really gross to feel it. The latest is an orchid that was fine when I bought it. I've had it about two weeks, watered it once, and now it is really slimy.
What am I doing wrong? This is in Mobile AL, a high humidity place.