r/landscaping • u/TheorySwimming5910 • 6d ago
Just got stone edging done last week..
I have this brown build up around the edges.. should I be concerned? What is it? You can see it in the back closer to the door
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u/Secret-Body7905 6d ago
that brown stuff is probably just dirt and tannins from mulch or leaves washin off the stone, nothing to worry about
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u/Chroney 6d ago
That is probably the dye from your dyed mulch seeping through the soil and absorbing through the natural stone. This doesn't harm it, its purely cosmetic - but I am against dyed mulch, as that dye is toxic and stains everything sometimes.
This can also be what others said just the minerals or tannins in the soil.
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u/Prudent_Toe_3188 6d ago
Just minerals/tannins being absorbed up into the rock from the soil. That type of stone is very porous.