Smart Cat Kitty Garden Seed Refill KitCats require vegetables in their daily diet for balanced nutrition and healthy digestion. Provide your cats with a safe alternative to chewing on houseplants, which tend to be toxic when swallowed. Kittys Garden cat grass provides cats with the healthy digestion they need, and the tasty green grass they want. A blend of oat, wheat, rye, and barley Grows in less than 1 week Helps with digestion & hairball prevention