algae monster coming out of algae covered river

Stop the Algae Monster! Excessive Nutrients are Harmful

Harmful algae can form in waterways due to excessive nutrient loading from yard waste.

Leaf litter accounts for 56% of phosphorous in urban stormwater.

The amount of phosphorous in the avg. year of lawn clippings can produce 100 lbs of algae.

1 lb of fertilizer over-application can equate to 34.2 lbs. of excess algae growth in waterways.

fish bones

100,000+ miles of rivers and streams are polluted with excess nutrients.

fertilizer bags

Excess nutrients in our waters promote algae growth and can be harmful to pets and humans.

person covering mouth

This also leaves an unpleasant odor as it often results in the death of aquatic life.

What Can You Do

  • Compost or bag leaves and grass clippings.
  • Don’t blow grass clippings into the street.
  • Sweep up any spills or overspray of fertilizers on sidewalks and streets.
person spraying fertilizer
  • Fertilizing in early fall promotes healthy roots.
  • Adjust spreaders to apply at product-listed rates or get a soil test to determine the best rate.
  • Seek help from a local garden center.

Courtesy of your local stormwater program. Find your local program for more information.

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