Sand does not protect grass seed after planting. According to Mississippi State University, moist sand mixed with fine grass seed helps with even spreading to limit wasted seed. Apply clean straw mulch over freshly sown grass seed to protect it until germination.
About this Author
Jennifer Loucks has been writing since 1998. She previously worked as a technical writer for a software development company, creating software documentation, help documents and training curriculum. She now writes hobby-based articles on cooking, gardening, sewing and running. Loucks also trains for full marathons, half-marathons and shorter distance running. She holds a Bachelor of Science in animal science and business from University of Wisconsin-River Falls.