No fertilizer containing nitrogen and/or phosphorus may be applied to turf or landscape plants between June 1 and September 30.
To protect the environment, limit stormwater runoff, reduce the potential for algal blooms, and improve the quality of waterways, the application and use of fertilizer is prohibited during the rainy season from June 1 to September 30. One of the main causes of algal blooms is excess nutrients in our waterways. During the rainy season, fertilizer containing these nutrients will run off into our waterways due to the frequency and severity of rainfall.
In February 2020, the City revised its ordinance () regarding standards for Florida-friendly fertilizer use on urban landscapes. The revised ordinance prohibits the application of fertilizer with nitrogen and phosphorus during the rainy season as an additional measure to help keep our waterways clean.
Read Section 28-4 of the Code of Ordinances of the City of Fort Lauderdale, entitled "Standards for Florida-Friendly Fertilizer Use on Urban Landscapes."
Original source can be found here.