Pennington 1 Step Complete ™ makes it easy to grow beautiful thick, water-saving grass. Everything you need is pre-mixed and ready to use all in one bag. Simply apply, water and watch it grow. Our super absorbent seeding mix holds and maintains moisture around the seed while providing the essential nutrients needed to grow healthy, thick grass. Pennington 1 Step Complete ™ grows 80% thicker with half the water than ordinary grass seed during the critical germination period.