We offer our 100% Certified Organic Cat Grass in a self-grow kit as well, containing the same seed and custom soil mixture we use to grow the live Cat Grass. Pet Greens Garden is wheatgrass and Pet Greens Medley is a mixture of oat, rye and barley grasses. It can be grown right out of the bag or customers can choose to plant it in their own container, as long as it has appropriate drainage.