4" Cat GrassCat Grass (Dactylis glomerata Mixed Cereal Grasses) Cat Grass is a fast growing grass commonly grown indoors for cats to safely nibble and enjoy. Typically made from oat, wheat, rye, or orchard grass, these tender green blades provide a natural source of fiber that can help support digestion and reduce hairballs. The bright green shoots grow quickly and add a fresh, living accent to windowsills and plant displays. Easy to grow and pet friendly, Cat