There appears to be a (white/yellow) mould on the compost. What is it and is it harmful?
Mature green compost contains a wide range of beneficial fungi: some enhance plant resistance to disease; some enhance nutrient supply to the root system; others improve soil structure. These beneficial fungi tend to be associated particularly with the same woody particles that occasionally develop visible moulds so, although these harmless moulds may seem strange at first, they are a reminder that such compost is naturally rich in ‘friendly microbes’.
