Invasive Plant Rules in St. Petersburg, FL: What Residents Actually Need to Know

If you live in St. Petersburg or are thinking about moving there, invasive plant rules are one of those things you probably won't think about until they affect you directly. St. Petersburg has 2 specific rules on the books covering different aspects of invasive plant rules, and some of them might surprise you.

Front Yard Gardens

St. Petersburg City Code § 16.40.060.2.1.2(A) requires every required front yard and street-side yard on one- and two-unit lots to stay permeable, landscaped, vegetative green space. Paving, driveways, walks, patios and porches combined, cannot exceed 45 percent of an inside lot's front yard or 25 percent of a corner lot's combined front and street-side yard area.

Key details: Inside lot paving cap: ≤45% of required front yard. Corner lot paving cap: ≤25% of front/street-side yard. Remaining area: Must be permeable vegetative green space. ADA features: Exempt from the paving calculation. Grandfather date: Yards nonconforming as of Aug. 25, 1977.

Front-yard permeability is checked at permitting and certificate-of-occupancy issuance; exceeding the paving cap after the fact is a Code violation enforceable under the general penalty, § 1-7: a fine up to $500.00, up to 60 days imprisonment, or both, with continuing noncompliance treated as a separate daily offense and referable to the Code Enforcement Board.

Prohibited Species

St. Petersburg makes it unlawful to plant, cause to be planted, or sell or offer for sale nine listed exotic and nuisance trees inside city limits, including Brazilian pepper, Australian pines, carrotwood, punk tree and Chinese tallow. Any project that needs a landscaping permit or landscape plan must remove every listed tree and show a regrowth-prevention plan before a certificate of occupancy.

Key details: Governing section: City Code § 16.40.060.2.1.6(D), Prohibited trees. Banned acts: Plant, cause to be planted, sell or offer for sale. Listed species: Nine, from earleaf acacia to strangler fig. Development duty: Remove all listed trees from the property and abutting right-of-way. Timing: Regrowth-prevention plan required before certificate of occupancy approval.

The prohibited-species paragraph prints no fine of its own. Its enforcement lever is the development process: a project that needs a landscaping permit or landscape plan cannot reach a certificate of occupancy approval until prohibited trees are removed from the lot and abutting right-of-way and a regrowth-prevention plan is filed. The separate tree-protection penalty in § 16.40.060.5.6 is a $500.00 fine for each conviction, but it is written for that tree-protection part of the Code and the prohibited-species text does not cite it.

Compared to other cities, St. Petersburg takes a harder line on prohibited species. The enforcement and penalty structure reflects that.

The Bottom Line

St. Petersburg's invasive plant rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming St. Petersburg is broadly strict or permissive.

This guide is based on St. Petersburg's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.