This excelsior blanket helps to promote germination of newly-planted seeds by protecting seeds from erosion. It is made of weed-free shaved aspen fibers and a fully-integrated degradable net that provides increased stability to the blanket. To use, simply roll it out over a seeded area and secure with pins. The excelsior fibers help to retain moisture while also covering the seed. Over time, the blanket materials will degrade, leaving you with virtually no cleanup.