Many times fungus gets accumulated on the walls of my ceramic pots, it gets too thick & smelly. It is difficult for me to completely remove it with knife.

Is their any way by which we can prevent its growth on ceramic pot ?

I dont want to re-plant all of my ceramic pots plants to plastic pots for this.

enter image description here

enter image description here


1 Answer 1


You don't normally see fungus growing on clay pots unless it is in a greenhouse with a high humidity. Then you see algae and green slimy growths.

However you can see a white powdery exudate on clay pots where the local water has a lot of dissolved salts. If your area has a lot of limestone this will likely be calcium and a mix of other salts. If this is what you have it would be dry to touch, whitish and some can be scraped off with a knife or other hard surface.

To remove take off as much as you can with a wire brush and then apply linseed oil, which will make the powdery deposits invisible. I use over strength vinegar, or a 10% solution of hydrochloric acid. Rinse well afterward. When using hydrochloric acid wear goggles, long sleeves and gloves!

  • 1
    Salts can accumulate from growth mixtures such as miracle grow and many orchid formulas.
    – user15482
    Jul 30, 2016 at 3:34

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.