Q&A › Category: Home and Family › How to clean landscape lava rocks?
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Wave R. asked 9 years ago

I have some red lava rock that was put down about 8 years ago. It was put down over black plastic in the front of my house. It now has green mold or moss all over the top of it. What can I do to get the green stuff off? I plan on putting some more down on top of it but I think I need to get the green stuff off of it first. Please help!