Fertilizer education
opportunities
For retailers, landscapers, and lawn care professionals
Suffolk County Fertilizer
Turf Management Course
The next virtual course will
be held on Friday, June 13, 2025 from 9:00am -12:00pm
on zoom.
To register for the
Turf Management Course
click on the following link:
https://ccesuffolk.org/events/
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To protect Long Island's waters, applying fertilizer in Suffolk County from November 1 to April 1 is prohibited. But you've come to the right place to find out how we can have Healthy lawns & Clean water.
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About the law
For homeowners
- Does your lawn need fertilizer?
- How to care for your lawn
- Seasonal tips
For retailers, landscapers, and lawn care professionals
- How the law affects you
- Fertilizer education opportunities
- 'Resource Guide' for employee training
Spread the word
- Best management practices
- Healthy Lawns/ Clean Water Brochure
- Healthy Lawns/Clean Water Sign
Fertilizer Research Summary
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We can have both!
On Long Island, we depend on our groundwater for drinking water. But the nitrogen fertilizer we apply to our lawns - especially when the grass is dormant - can move down through the soil and pollute our aquifer.
This site will help you manage your fertilizer and lawn to protect our groundwater - as well as our surface waters, bays, and estuaries - from pollution due to lawn fertilizers.
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Help keep fertilizer out of our waters!
Image used by permission from the Washington State Department of Ecology.
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