Cat & Pet Grass Seed Blend. Non-GMO, Certified Oranic by OTCO. Blend of Hard Red Wheat Seeds (wheatgrass) Barley (barleygrass) Oats (oatgrass) & Rye (ryegrass). Your pets crave the sweet taste of grass to maintain their health. This grass seed blend is loaded with vitamins and minerals to keep dogs, cats and even rabbits healthy.