I saw wet moss and a few pieces of bark but I don't think that is what you are talking about. There seems to be some paper or cardboard holding the moss in place. I sometimes use screen for this purpose but this is an organic product. I'll have to look closer in the light tomorrow. Time now to go to this seasons first choir practice. Next week starts the beginning of the Master Gardener lecture season and I'm doing my fruit talk on Thursday night. Busy, busy, busy.
Jim
