Keep your cat out of the house plants by giving him his own savory plant to snack on thanks to a bag of Imperial Cat Easy Grow Cat Oat Grass Seeds. Just add soil and water to grow sweet, succulent oat grass indoors any time of year; grass will begin to sprout in 3-4 days. Fresh, delicious oat grass provides him with nutrients and fiber that aid digestion and help eliminate hairballs. Plus, the natural chlorophyll in oat grass helps keep his breath smelling fresh. Although packaged for cats, pets of all kinds will enjoy nibbling on these tender green shoots.