On Thu, 12 Apr 2007 18:18:46 -0900, Jan Flora wrote:
Has anyone figured out how get the salt crust off their
clay pots? I've tried white vinegar. It didn't work.
Maybe I didn't do it right.

Unpot the plants. Soak pot overnight, or at least a couple hours, in
plain water with an acidifier of some sort (not bleach, it's basic/alkaline).
Scrub well with a stiff-fibered brush, rinse and dry.

Don't expect to get all the salts off, but the pot will look much better and
you won't be having water potential problems with your plants. I like
a plain old 8" stiff-fibered palmyra pot brush for this work -- fingernail
brush or surgical hand brush for the smaller ones, and a toothbrush for the
thumbpots.

Kay