May 31 is the last date that you can apply nitrogen or phosphorus fertilizers in Pinellas County. October 1 these fertilizers can be resumed.

To apply phosphorus any time of year you must have a soil test documenting a deficiency and also have sent this information to the Pinellas County Watershed Division, Attention: Division Director, 300 South Garden Avenue, Clearwater, FL 33756 prior to the application of phosphorus.


For more information see the Pinellas County Watershed Division website

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