How St. Petersburg Handles Landscaping Rules: A Practical Guide

St. Petersburg maintains 143 local ordinances across all categories, and 6 of those deal specifically with landscaping rules. Here is a breakdown of what the city actually requires, what is prohibited, and where St. Petersburg falls on the strict-to-permissive spectrum compared to other cities.

Rainwater Harvesting

Rain barrels and cisterns count as "ancillary equipment" under City Code § 16.50.020.4.2: allowed citywide but subject to the same setback, one-foot ground-height cap, and street-facing screening rules that apply to pool pumps and solar panels, not a special rainwater-specific permit.

Key details: Classification: Rain barrels/cisterns = ancillary equipment. Ground-height cap: 1 foot above grade. Setback: Per Setbacks, Allowable Encroachments table. Street screening: Required if visible from a street. Nonconforming units: May be replaced at equal/lower rating.

Installing a rainwater harvesting device that violates the setback, height, or street-screening standards in § 16.50.020.4.2 is a Land Development Regulations violation; the POD can require relocation or screening, and an unresolved case proceeds to the Code Enforcement Board, which may impose fines up to $250 per day past the compliance deadline under § 9-29.

Native Plants

St. Petersburg City Code § 16.40.060.3.1(D) normally caps sod and turfgrass at ten inches and other ground cover at 24 inches, but property owners who convert to Florida-Friendly Landscaping™ or wildlife habitat management are excused from those height limits: as long as they keep a written management plan and can show active, ongoing maintenance.

Key details: Standard turf/sod cap: 10 inches maximum height. Standard ground cover cap: 24 inches maximum height. Exemption requires: Written Florida-friendly management plan. Preservation areas: Exempt from height caps entirely. Plan must address: 7 listed Florida-friendly principles.

A yard that exceeds the 10-inch turf or 24-inch ground cover cap without a qualifying Florida-friendly or wildlife-habitat management plan is a Code violation, enforceable under the general penalty at § 1-7: a fine up to $500.00, up to 60 days imprisonment, or both, with each day of continued excess growth counted as a separate offense.

St. Petersburg is more permissive than most cities when it comes to native plants. That said, there are still limits.

Weed Ordinances

St. Petersburg caps grass and weeds at a maximum overall height of 10 inches under City Code § 16.40.060.3.1.D, with ground cover plant material allowed up to 24 inches. The Planning & Economic Development Department (POD) enforces the limit through a written notice-of-violation process, and the City can clear an overgrown lot itself and lien the property for the cost.

Key details: Sod/turf max height: 10 inches. Ground cover max height: 24 inches. Enforcing agency: Planning & Economic Development Dept. Appeal window: 10 days (5 days repeat violation). Lien interest: 8% year one, 12% after.

Failure to keep sod/turf under 10 inches or ground cover under 24 inches is a code violation subject to the Notice of Violation and lot-clearing procedure. Uncorrected violations let POD mow or clear the lot and bill the owner via a special-assessment lien bearing 8% interest, rising to 12% after one year; the lien is enforceable like a mortgage foreclosure.

Water Restrictions

St. Petersburg limits potable-water lawn and landscape irrigation to set hours and, further, to two fixed days a week tied to your street address. Tuesdays/Saturdays for even addresses and A-M, Wednesdays/Sundays for odd addresses and N-Z, under City Code § 27-46.

Key details: Irrigation hours: 5-9 a.m. and 7-11 p.m. only. Even/A-M addresses: Water Tuesdays and Saturdays. Odd/N-Z addresses: Water Wednesdays and Sundays. New plantings: 30-day exemption from day limit. Low-volume methods: Hand/drip watering exempt from day limit.

Irrigating outside the permitted hours or on the wrong day is a violation of City Code § 27-46, enforceable under the general penalty in § 1-7: a fine of up to $500.00, up to 60 days imprisonment, or both. Each day a violation continues counts as a separate offense. The City may enforce through a citation, a summons to county court, or referral to the Code Enforcement Board under F.S. ch. 162 and Chapter 9 of the Code.

Tree Trimming

City Code § 16.40.060.3.1.F requires branches over a public sidewalk to clear at least 8 feet, and branches over a street or alley to clear at least 14 feet, and bars trees or shrubs from encroaching onto the paved surface itself beyond a 6-inch sod/ground-cover allowance.

Key details: Sidewalk branch clearance: 8 ft minimum. Street/alley branch clearance: 14 ft minimum. Pavement encroachment: 0 in (sod/ground cover to 6 in). Annual pruning cap: 25% of canopy. Enforcing agency: POD.

Overhanging branches below the 8-foot sidewalk / 14-foot street clearance are cited through a mailed and posted Notice of Violation; uncured violations let the City trim the tree itself and assess the labor and administrative cost as a property lien.

Tree Removal & Heritage Trees

When removing a tree drops a St. Petersburg one- or two-unit lot below its minimum tree count, City Code § 16.40.060.5.3.F requires planting a replacement shade tree, or paying $500 per tree into the environmental enhancement fund, and § 16.40.060.5.6 adds mandatory Trunk Formula Method mitigation for illegal removals.

Key details: Residential in-lieu fee: $500 per tree. Illegal-removal fine: $500 per conviction. Mitigation basis: total dbh of largest tree removed. Relocated-tree replacement window: 90 days if it dies. Repeat after-the-fact permit: barred within 5 years.

Failing to replant a required shade tree, or to pay the $500-per-tree in-lieu fee, leaves the property below its minimum tree standard and out of compliance; illegal removals additionally draw a $500 conviction fine plus Trunk Formula Method mitigation payable to the environmental enhancement fund.

The Bottom Line

St. Petersburg's landscaping 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.