Every bag of Pennington® Smart Seed™ contains pure seed and no filler. The seed varieties used in Pennington® Smart Seed™ are some of the most advanced varieties available and have been developed for their drought tolerance. At least 60 percent of the seed in every bag of Pennington® Smart Seed™ has been qualified by the Turfgrass Water Conservation Alliance (TWCA) for its drought tolerance. Pennington Seed is one of the three founding members of the TWCA, which works with state university systems and private research enterprises to develop turfgrasses that use less water. For more information go here Planting grass seed
Another Pennington® Smart Seed™ Hands-On Experiment
