How to stop moss from growing on rocks around my bushes
+2
the stones are lava rock
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Wipe the rocks down with vinegar.
Heres a link that suggests a speciality vinegar.
http://homeguides.sfgate.com/kill-moss-landscaping-walls-28693.html
you cannot use chemicals if there are plants around.you will have to power wash it off
The area needs more sun
I would say use vinegar and boiling water- but make sure to cover the area that you want to protect- good luck!