If the dark, thick patches appear in a circular pattern, you may have a fairy ring. This is a color response caused by decomposing plant material under the soil surface. Mushrooms often pop up in ...

THD is especially good for surface dark spots that need brightening rather than deeper dark circles, says Dr. Mikailov. It's worth noting that these dry up around the 10 minute mark, and while ...

It's made from very old decayed plants and is dark, crumbly and rich in nutrients ... leaves which we call organic matter. Avoid bare soil patches or empty flowerbeds by always having some ...