Answer: One of the potential drawbacks to cocoa shells is the mold problem in damp weather. You might want to rake it to fluff it and expose more surface area to air and sun so it dries out. Also, use only a shallow layer, no more than two or three inches thick. No matter what type of mulch you use, it should not be in contact with the stems of the plants, allow several inches of breathing space around each plant. It should not hurt your plants as long as they are not touching it.
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