Nature's Promise Western Timothy Hay is the absolute highest grade hay available for your pet. Grown under the optimum conditions of warm days and cool nights on family-owned farms in the valleys of Idaho, this hay is organically fertilized and not treated with pesticides. Every cutting is certified weed-free and inspected before, during and after packing to ensure premium quality. Western Timothy is the most recommended hay for everyday feeding. It provides long-strand fiber for good digestive health and.