Milorganite® slow-release nitrogen fertilizer is one of the oldest branded fertilizers on the market today, with over 90 years of providing an environmentally-friendly alternative to synthetic fertilizer. Milorganite® remains inspired by our mission to improve the environment by creating a low impact formulation that recycles valuable nutrients.

Milorganite® fertilizer is derived from heat-dried microorganisms, which feed on the nutrient-rich wastewater from local businesses such as MillerCoors. The Milorganite® program is one of the nation's largest recycling efforts.

Headquartered in Milwaukee, Wisconsin, Milorganite® products are manufactured and marketed by the Milwaukee Metropolitan Sewerage District (MMSD), a regional government agency that provides water reclamation and flood management services for about 1.1 million customers in 28 communities in the Greater Milwaukee Area.

Milorganite® promotes healthy growth of lawns, trees, shrubs, flowers, and vegetables. Milorganite® contains slow-release nitrogen which helps produce thick, green lawns without excessive top growth. Milorganite® is fortified with 2.5% iron for enhanced greening. The non-burning formula doesn't contain any salts and doesn't have to be watered-in. It stays in the soil ready to work when moisture comes later. Eco-friendly Milorganite® is USDA Bio-Preferred certified containing 85% organic matter.