Seasonal Briefing · June – SeptemberSummer Fertilizer Ban & Rainy-Season Care
Southwest Florida, June – September
From June 1 through September 30, fertilizer ordinances across much of Southwest Florida take the tools most vendors lean on off the table. Growth is at its fastest, pest pressure is at its highest, and nitrogen is prohibited. Summer separates a managed program from a mowing route.
The restricted season and storm readiness.
Four months without nitrogen or phosphorus
The restricted season is a legal limit, not a preference. A property that was not fed properly in spring has no reserve to draw on, and there is no lawful way to correct it until October. Summer performance is decided in April.
Rainfall does the leaching
Heavy summer rain moves potassium and magnesium out of the root zone in Florida’s sandy soils, which is why palms decline visibly across Southwest Florida late in the season. Potassium, magnesium and micronutrient products remain available during the restricted season, when nitrogen and phosphorus are not.
Peak chinch bug, peak misdiagnosis
Warm temperatures speed development, thick thatch gives the insect refuge from its natural enemies, and drought stress between storms concentrates damage in open sunny areas. Spot treatment of identified activity protects beneficial insects and costs less than replacing turf.
Storm response is a staffing question, not a marketing one
Debris clearing, sight-line restoration and drainage checks after a named storm depend on whose crews are local and how quickly they can be assigned. A national footprint is not the same as a crew twenty minutes away.
Under the Lee County and City of Bonita Springs fertilizer ordinances, and similar ordinances across the region, no fertilizer containing nitrogen or phosphorus may be applied to turf or landscape plants from June 1 through September 30. Outside that window, the ordinances set slow-release and annual limits on what may be applied, and no fertilizer may be applied within 10 feet of the top of bank of any water body, seawall or wetland.
- Compliant summer nutrition: no nitrogen or phosphorus, 10-foot water buffers observed
- Growth-rate mowing and edging schedules that hold the property’s line through the wet season
- Identification-first pest inspections with documented findings each visit
- Pre-storm site review and post-storm cleanup sequencing, locally crewed
This briefing is issued to NewScape members as a printable document. Download a copy for the board or the office file.
Resources: UF/IFAS EDIS ENH1/MG025 Cold Protection of Landscape Plants · ENY-325/LH036 Managing Southern Chinch Bug in Warm Season Turfgrasses · ENH1009/EP261 Fertilization of Field-Grown and Landscape Palms in Florida · ENH1182/EP443 Pruning Palms · ENH5/LH010 St. Augustinegrass for Florida Lawns · SS-PLP-5/LH044 Large Patch · Lee County Ordinance No. 08-08 · Lee County Ordinance No. 24-01 (amending No. 05-10) · City of Bonita Springs Ordinance 08-23 · South Florida Water Management District landscape irrigation schedules. Regulatory requirements are summarized, not quoted in full; the governing ordinance controls.
Every season, briefed before it begins.
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