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Landscape Certification Program

Stormwater runoff is a major source of pollutionLittoral.jpg flowing into our natural waterbodies and must be reduced. The Naples City Council adopted an ordinance regulating fertilizers containing nitrogen or phosphorous and providing specific management guidelines for fertilizer application in order to minimize negative environmental effects on our natural waterbodies. We ask that you review the following information, share it with your landscape contractor, and join your fellow citizens to help reduce pollution in our surrounding waterways. This is just one of many strategies to make Naples the "Green Jewel" of Southwest Florida.       Photos by Isabel Way-Soto, Rookery Bay NERR


Highlights of the ordinance include the following

  • Fertilizers containing nitrogen or phosphorous cannot be applied during the rainy season. (Rainy season is June 1 - September 30); 
  • The nitrogen content in your fertilizer must have at least 50-percent slow release nitrogen. Look for these ''slow-release'' terms on the product label or fertilizer bag: time-released, slow-released or controlled- released, water-insoluble nitrogen, sulfur-coated urea (SCU), ureaform (UF), nitroform, resin-coated urea. Or please ask your lawn/fertilizer professional for assistance
  • Fertilizer shall: 
    • Not contain more than 2-percent phosphorous; there are three numbers on a fertilizer package which gives the percentage of the primary nutrients, Nitrogen (N), Phosphorus (P) and Potash (K). Look for fertilizers with the middle number of 2 or less (e.g. 10-0-10, 15-2-15); 
    • Not be applied at a rate greater than 1 pound of nitrogen per 1000 square feet; 
    • Not be applied more than 4 times during any one calendar year; 
    • Not be applied, spilled, or otherwise deposited on any impervious surfaces or within 10 feet of any waterbody; deflector shields are required when adjacent to these areas.


The following are exempt from the requirements: 
        • Newly established turf or landscape plants for the first 60 days after installation 
        • Areas with phosphorous below 10 parts per million 
        • Vegetable gardens; yard waste compost, mulch

Lawn and Landscape Maintenance - Mandatory Certification Requirements
Commercial or institutional fertilizer applicators must obtain a city certification in order to apply fertilizer within the City limits.  To become certified, a company must have at least one supervisor plus 10% of field staff complete the Green Industries Best Management Practices (GI-BMP) course and have at least one GI-BMP certified employee at each work site.

Click here to view the full version of the ordinance

Landscape Certification Initial Application Form

Landscape Certification Renewal Application Form

* Please look for the City's certification decal on your lawn and landscape maintenance company's vehicle.