Searles Sphagnum Moss retains moisture excellently & is useful and decorative in terrariums, orchids, pots, hanging baskets, floral arrangements, terrariums & reptile housing. Sphagnum Moss is the whole moss plant collected alive along with connected dead, but non-decomposed moss parts. Dried sphagnum moss is not generally used in potting mixes but may be used as a top dressing of shredded moss parts over seeds in germination trays.