MasterGreen Patch-it works quickly and effectively to repair bare spots, compaction in high traffic areas, digging damage, and to fill in thin areas left by your pet. The grass mixture blends in with existing grasses for "The Green Solution" to your bare spot problems giving you a great looking lawn. Easy to use Patch-it contains a seed, fertilizer, and mulch combination to eliminate the guess work and make application and repair a breeze. Adding mulch gives soil organic material for improving the soil quality and decreasing compaction.