Any tips on keeping white mold/mildew off of unglazed cla...
Any tips on keeping white mold/mildew off of unglazed clay pots?
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The white stuff that accumulates on terra cotta pots is usually mineral deposit build up from either your water (if it's hard) or fertilizer. So it's not usually mold/mildew. You can clean it with water and white vinegar. I have also started using distilled water because my water is so hard where I live!
@mossthecat I agree with @StarryKentia where a spritz of clear spray paint work but it also reduces the air flow on the pot). Like @JovialCaitlin said if it is white it’s mineral but I get this (see pic 1) in a few which is mildew/mold. you can make a mixture of like 1 tsp bleach and a cup of water and wipe the outside of it with a rag. Or, I have 12% hydrogen peroxide that I mix in a spray bottle 50/50 water to peroxide and spray the outside of it. I use the bleach for my terracotta pots in the kitchen as I don’t want mold to spread (I read it’s not a problem if you don’t have asthma). Second pic is pot 5 min after spraying with peroxide and wiped. The Left of the pot has the mold. The right is sprayed.
