Grass Nuts 16%, A unique blend of grasses is used by Northern Crop Driers to produce their grass nuts. This blend is made up of the following grass types: Solid Hybrid Ryegrass, Donard Perennial Ryegrass, Moy Perennial Ryegrass, Dovey Tall Fescue, Promesse Timothy. Grass Nuts 16% contains: Milled Grass.