Florida Lawn Care Guide: Fertilizing, Watering, Pest Control & Best Grasses

Florida Lawn Care Is Different

Maintaining a lawn in Florida is genuinely different from lawn care in most other states — and what works in Georgia, the Carolinas, or the Midwest can actively harm a Florida lawn. Florida's tropical and subtropical climate means warm-season grasses (not the cool-season grasses most northerners are familiar with), different fertilization timing, strict watering restrictions, and year-round pest and fungal pressure.

Understanding Florida's unique lawn requirements will save you money, prevent costly mistakes, and help you maintain the lush, green yard Florida weather should support.

Florida Grass Types: Which Is Right for You?

St. Augustine Grass

The most common lawn grass in Florida, found in roughly 75% of Florida residential lawns. St. Augustine thrives in Florida's heat and humidity, tolerates shade better than other warm-season grasses, and creates a lush, dense carpet. Varieties include Floratam (most common, sun-loving), Palmetto (more shade tolerant), and CitraBlue (improved disease resistance).

Best for: Most Florida lawns with average sun exposure. Very commonly used in North and Central Florida.

Challenges: Susceptible to chinch bugs (the #1 St. Augustine pest in Florida), gray leaf spot fungus, and brown patch. Does not handle heavy foot traffic well.

Zoysia Grass

A dense, slow-growing grass with excellent drought and salt tolerance — ideal for coastal Florida properties. Zoysia creates a premium, fine-textured lawn that crowds out weeds naturally. Goes dormant and turns brown in North Florida winters. Requires more sun than St. Augustine.

Best for: Coastal properties, high-traffic areas, homeowners willing to invest in a premium lawn.

Challenges: Very slow to establish from sod (6–12 months to fully fill in). Higher sod cost than St. Augustine. Turns brown in winter in North Florida.

Bahia Grass

The workhorse grass of Florida — extremely drought-tolerant, low-maintenance, and used primarily for Florida pastures, roadsides, and budget-conscious lawns. Not as lush or dense as St. Augustine, and produces tall seed heads if not mowed frequently.

Best for: Large properties, rural Florida lawns, areas with poor soil or limited irrigation.

Challenges: Less attractive than other grass types. Needs frequent mowing to control seed heads.

Bermuda Grass

Popular for Florida golf courses, sports fields, and high-traffic areas. Creates a dense, fine-textured lawn but goes dormant in winter in most of Florida. Requires full sun and is highly invasive — will spread into garden beds and neighboring lawns.

Best for: High-traffic areas, HOA common areas, South Florida year-round green applications.

Florida Fertilization Schedule

Fertilizing a Florida lawn is strictly regulated — applying fertilizers at the wrong time or in the wrong amount violates local ordinances in many Florida counties and contributes to water quality problems in the Everglades, springs, and coastal waters.

Florida Friendly Fertilization Guidelines (most counties):

• Do NOT fertilize June–September in most coastal counties (Fertilizer Blackout Period). Heavy summer rains wash nutrients into waterways before grass can absorb them.
• March–May: Primary spring fertilization. Apply a complete fertilizer with slow-release nitrogen. For St. Augustine, 1 lb of nitrogen per 1,000 sq ft per application.
• September–November: Fall fertilization. Use a potassium-heavy blend (like 5-0-15 or 0-0-22) to improve drought and cold tolerance.
• December–February: No fertilization in most of Florida. Lawns are semi-dormant and cannot absorb nutrients.

In South Florida (Miami-Dade, Broward, Palm Beach), lawns may be fertilized year-round but still must follow reduced summer rates and blackout periods. Check your specific county's ordinance — many have adopted the Florida-Friendly Best Management Practices Fertilizer Rule.

Watering Rules in Florida

Most of Florida is under water restrictions managed by Water Management Districts. Violating irrigation restrictions can result in fines. Standard restrictions typically allow:

• Established lawns: 2 days per week irrigation, based on your address (odd/even watering days)
• Newly sodded lawns: Temporary exemption allowing daily watering for 30–60 days after installation
• Hours: Irrigation is typically restricted to before 10AM and after 4PM to reduce evaporation

How much water does a Florida lawn need? Most Florida lawns need 3/4 to 1 inch of water per week from all sources (rain + irrigation). Florida summers (June–September) typically provide adequate rainfall, and supplemental irrigation should be minimized. A rain sensor on your irrigation system is required by Florida law and should shut off irrigation after 3/4 inch of rain.

Florida Lawn Pests: What to Watch For

Chinch Bugs

The #1 threat to St. Augustine lawns in Florida. Chinch bugs suck moisture from grass blades, creating irregular yellow or brown patches that expand outward from the edges. Most common in hot, dry, sunny areas. Control: bifenthrin or other labeled insecticides. Resistant populations have developed in some Florida areas — rotate products to prevent resistance.

Grubs

White grub larvae (mole cricket grubs, billbugs, and others) eat grass roots underground, creating patches of turf that can be lifted like a carpet. Treat with Merit (imidacloprid) or Dylox (trichlorfon) depending on timing and grub species. Spring is the best time for preventive treatment.

Mole Crickets

Particularly damaging to Bahia and Bermuda lawns in Florida. Mole crickets tunnel through the soil, uprooting grass and creating visible raised tunnels. Early spring treatment (when nymphs are small) with bifenthrin or other labeled products is most effective.

Army Worms

Fall army worms can devastate a Florida lawn in 3–5 days, consuming grass blades in large migrating groups. They appear most commonly in late summer and fall. Treat immediately upon detection with Sevin, bifenthrin, or spinosad (organic option).

Common Florida Lawn Diseases

Brown Patch: Circular brown patches, most common in St. Augustine during cool, wet weather (October–February in most of Florida). Caused by the Rhizoctonia fungus. Treat with azoxystrobin or myclobutanil fungicides.

Gray Leaf Spot: Small gray lesions on St. Augustine blades, most active during warm, humid summer weather. Often mistaken for drought stress or chinch bug damage. A fungicide application plus correcting over-fertilization usually resolves it.

Take-All Root Rot (TARR): A serious fungal disease affecting St. Augustine in wet conditions. Causes yellowing and root deterioration. Hard to treat — prevention through proper irrigation and avoiding over-fertilization is key.

Lawn Care Service Costs in Florida