320 Series Nurserymen’s Choice is premium quality ground cover (landscape fabric). At 3.2 oz. this product is a true ground cover… not a ‘wide yarn’ silt fence knock-off. Our ground cover is American Made of 100% High UV polypropylene. The woven fabric has a colored marker yarn every 1′ across the width, running the length of the rolls for plant alignment. Around the nursery, in the greenhouse, or in a backyard bed, the 320 Series is the long lasting alternative to a regular chemical control program.