Use Phosphorus-Free Lawn Fertilizer to Protect Minnesota Lakes and Rivers

Minnesota law prohibits phosphorus fertilizer on lawns unless exceptions apply. Fertilizers must have a middle number of 0.

Minnesota law prohibits the application of phosphorus-containing fertilizer to lawns under most circumstances. Phosphorus is the primary nutrient that turns lakes and rivers green with algae.

Use Phosphorus-Free Lawn Fertilizer to Protect Minnesota Lakes and Rivers [PDF]

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