Re: The yard & garden line is OPEN
Originally Posted by SunDeck
Looks like a kind of Lichen to me. I'd probably power wash it, but don't use the highest setting. Just enough to clean it off. Stone is tough, but not indestructible.
Is that the north side of your house or is it constantly shaded?
It is in pretty direct sunlight most of the day. Backyard faces southeast
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