Hi All

We have a couple of pots in our study, and in there we have young Japanese
maple planted this spring. They seem to be doing ok with new leaves coming
out..etc, but what we noticed is that compost soil in the pots are covered
with these green moldy stuff that you see on sea side rocks, and whenever I
come into study I can smell rotten staleness from these pots. Is this normal
or healthy, or should we do somthing about it? Could someone explain what is
happening here?

Thanks

Newbie gardener - Dan