North Florida Lawn Care: The Complete Guide
Everything Thompson's has learned in 30+ years — from new sod survival to beating chinch bugs — free and organized so you can actually use it.
New Sod Survival Guide
The first 30 days are everything. New sod has no established root system — it's just resting on the soil surface. Follow this week-by-week plan and you won't lose it.
Twice-Daily Watering
Water every morning (6–8am) and again early afternoon (1–2pm). Run each zone 15–20 minutes. Your goal: keep the top 1 inch of soil consistently moist. If it dries out, the sod dies — period.
Stay Off the Sod
No foot traffic. No pets. No kids. Every footstep compresses the sod into the soil before roots can anchor. Even one heavy walk-through during week one can leave permanent dead spots.
Taper Watering
Cut back to once daily, then every other day by week 3. Mild drought stress forces roots to grow deeper in search of moisture. If the sod springs back when pressed, roots are forming — great sign.
First Mow
Wait until grass reaches 4–5 inches AND passes the tug test (try to pull up a corner — it should resist). Set your mower to its highest setting. Never remove more than ⅓ of the blade at once.
The Root Check Test
After 2 weeks, grab a corner of a sod piece and gently tug. If it lifts — keep watering twice daily. If it resists — roots are anchoring. Do this weekly until you can't lift any edge.
New Sod Turning Yellow or Brown?
Don't panic — it's usually fixable. Yellowing in week 1–2 is often transplant shock or dry spots your irrigation missed. Spot-water by hand. Brown areas after rain mean waterlogged soil — check drainage immediately. Call us at (386) 462-5577 if unsure — we'd rather talk you through it than have you lose your lawn.
Know Your Grass
Alachua County is Zone 9a — warm, humid, and sandy. Each grass variety has specific strengths. Pick wrong and you'll fight it forever.
Not sure which grass to pick?
The single biggest factor is shade. If your yard gets fewer than 6 hours of direct sun daily, St. Augustine is your only realistic option. Full sun all day? Zoysia gives you the nicest-looking lawn with the lowest water bill. Call us at (386) 462-5577 and we'll tell you exactly what will thrive on your specific property.
Watering the Right Way
Most lawn problems in North Florida come from improper watering — either too much or too little. Here's exactly how to water an established lawn.
This is the target for an established lawn. Count rainfall — if you get ½" of rain, you only need to irrigate ¼" more that week.
Alachua County water restrictions allow 2 irrigation days per week. This is actually ideal — deep, infrequent watering beats daily light watering every time.
Early morning irrigation gives blades time to dry before evening. Evening watering (after 4pm) is the single biggest cause of fungal disease in Florida.
Seasonal Adjustment Guide for Gainesville
| Season | Months | Frequency | Per Session | Notes |
|---|---|---|---|---|
| 🌱 Spring | Mar–May | 2× per week | ~½" | Increase as temps rise. Watch for dry spells before rainy season. |
| ☀️ Summer | Jun–Sep | 1–2× per week | ~½" | Rainy season often handles it. Skip runs after ½"+ rainfall. |
| 🍂 Fall | Oct–Nov | 1× per week | ~½" | Reduce as growth slows. Avoid watering during cool fronts. |
| ❄️ Winter | Dec–Feb | Every 10–14 days | ~½" | Dormant grass needs very little. Only water during extended dry spells. |
Is Your Lawn Telling You Something?
Blue-gray color + blades folding
Diagnosis: Drought stress. Water immediately. If your lawn turns green within a day, no damage done. If patches stay brown, those roots may have died.
Mushy soil + algae + mushrooms
Diagnosis: Overwatering or poor drainage. Skip your next 2–3 irrigation cycles. Recurring mushrooms after dry spells suggest a drainage problem that needs evaluation.
Streaky yellow patches
Diagnosis: Irrigation coverage gaps — dry spots your system misses. Test each zone with a coffee can: run the zone 15 min, should collect ¼–½".
Fertilizing for North Florida
Florida's growing season runs March through October. Fertilize 3 times per year — never in winter, never during drought, never right before a heavy rain.
Reading a Fertilizer Bag (Without a Chemistry Degree)
Makes grass green and promotes blade growth. Too much = disease-prone, fast-growing, weak roots.
Root development. Florida soils usually have enough. Most lawn fertilizers are 0 phosphorus to protect waterways.
Disease resistance, drought tolerance, winter hardiness. Sandy Florida soils leach potassium fast.
St. Augustine + Iron = Richer Green
St. Augustine develops iron chlorosis in alkaline soils — yellow blades despite fertilizing. Add liquid chelated iron separately 2–3 times per year. It won't replace nitrogen, but makes the color noticeably darker. Apply in the morning and water in lightly.
✅ Do This
- ✓ Use slow-release granular for summer applications
- ✓ Water in within 24 hours of applying
- ✓ Test soil pH every 2–3 years (UF/IFAS lab, ~$7)
- ✓ Apply when rain isn't expected for 24 hours
- ✓ Calibrate your spreader for sandy soil
❌ Never Do This
- ✗ Fertilize dormant or drought-stressed grass
- ✗ Fertilize after October 1 (freeze damage risk)
- ✗ Apply before a predicted heavy rain (runoff)
- ✗ Double-dose — burnt grass takes weeks to recover
- ✗ Use weed-and-feed on newly installed sod
Mowing Right
Incorrect mowing height is behind at least half the struggling lawns we see. It's free to fix — just raise or lower your deck.
The Golden Rule of Mowing
Never remove more than one-third of the grass blade in a single mowing. If St. Augustine is at 6 inches, cut to 4 — not lower. Remove too much at once and you stress the plant, expose soil to sun, invite weeds, and risk scalping that leaves permanent bare spots.
Mowing Heights by Grass Type
| Grass Type | Ideal Height | Mow When It Reaches | Frequency (Summer) | Frequency (Winter) |
|---|---|---|---|---|
| St. Augustine | 3.5 – 4 in | 5.5 – 6 in | Every 7–10 days | Every 3–4 weeks |
| Zoysia | 2 – 2.5 in | 3 – 3.5 in | Every 10–14 days | Minimal / as needed |
| Bermuda | 1 – 1.5 in | 2 – 2.5 in | Every 5–7 days | Dormant — minimal |
| Bahia | 3 – 4 in | 5 – 6 in | Every 7–14 days | Monthly |
Sharp Blades Matter More Than You Think
Dull mower blades tear the grass instead of cutting it. The ragged ends turn brown within 24 hours, giving your lawn a tan haze. Sharpen blades every 20–25 hours of mowing time — at minimum once per season.
Mulch, Don't Bag
Grass clippings return nitrogen to the soil as they decompose — free fertilizer. Only bag clippings if you're mowing weeds with seeds or treating a fungal disease. Otherwise, let the mulch plug do its job.
Don't Mow in the Heat of the Day
Mowing at 1pm in August stresses already heat-stressed grass. Morning or late afternoon mowing lets the cut surface harden before the hottest part of the day — especially important during drought.
Change Your Pattern Each Mow
Mowing the same direction weekly causes the grass to lean and creates ruts from wheel tracks. Rotate your mowing pattern 90° each session for a more uniform, upright lawn.
Problem Solver & Pest Guide
Florida has a unique set of lawn villains. Match your symptoms to get the right fix — treating the wrong problem makes it worse.
Not Sure What You're Looking At?
Take a photo of the damage and call us. We diagnose lawn problems over the phone every day and are always happy to point you in the right direction — even if you're not a customer yet.
North Florida Lawn Calendar
Month-by-month for Gainesville / Alachua County (Zone 9a). Come back each month and never wonder what to do next.
| Month | Mow | Water | Fertilize | Watch For |
|---|---|---|---|---|
| January | As needed | Every 2 weeks if dry | None | Freeze damage on St. Augustine edges |
| February | As needed | Minimal | None | Late freeze risk; apply pre-emergent before temp rises |
| March ✅ | Begin regular schedule | 2x/week as temps rise | App #1 (15-0-15) | Dollar weed emerging; pre-emergent window closing |
| April | Weekly | 2x/week | Only if skipped March | Mole crickets emerging; crabgrass germinating |
| May | Weekly | 2x/week | None | Early chinch bug activity near pavement areas |
| June ✅ | Every 10 days | Reduce if raining daily | App #2 (24-0-11) | Peak chinch bugs; gray leaf spot after fertilizing |
| July | Every 10–14 days | Skip if raining daily | None | Peak chinch bug + gray leaf spot season |
| August | Every 14 days | Minimal — rainy season | None | Watch for extended dry breaks in rain pattern |
| September ✅ | Every 2 weeks | Resume 2x/week as rain drops | App #3 (0-0-50) | Brown patch risk as nights cool; repair bare spots now |
| October | Every 3 weeks | Once per week | None (too late) | Brown patch; last window to install new sod |
| November | Monthly | Every 10–14 days | None | Brown patch in cool wet weather; lawn entering dormancy |
| December | Minimal | Every 2 weeks if dry | None | Freeze protection for sensitive varieties; plan spring prep |
Most Asked Questions
Answers to what Gainesville homeowners ask us most — straight from 30 years on the ground.
How long does new sod take to root in North Florida?
How much does sod installation cost in Gainesville?
Can I install sod in the summer in Florida?
My St. Augustine has yellow patches but I'm already fertilizing. What's wrong?
How do I measure my yard to know how much sod to order?
When is the best time of year to install sod in Gainesville?
What's the best grass for a shaded yard in North Florida?
My lawn has brown patches after a rainy week. Is it drought or fungus?
Can I use pre-emergent weed killer on new sod?
How do I know if I have a drainage problem vs. overwatering?
How long after fertilizing can my family use the lawn?
My neighbor has a perfect lawn — same grass, same neighborhood. What am I doing wrong?
Things We've Learned the Hard Way
Tips you won't find on a fertilizer bag — picked up from thousands of Alachua County lawns over three generations.
Test Your Soil First
UF/IFAS Extension in Gainesville offers soil testing for around $7. It tells you your pH and exact nutrient levels. Most local soil is acidic sand that needs lime. Fertilizing at the wrong pH locks out nutrients no matter how much product you apply.
Get a Rain Sensor on Your Timer
We see overwatered lawns constantly because the irrigation timer ran right through a rainstorm. A $25 wireless rain sensor stops your system automatically when it rains. Required by Florida law for new systems — but most older systems don't have one. Pays for itself in one month of water savings.
Repair Bare Spots Before October
Small bare or thin spots have all summer to establish. Wait until November and you're asking new sod to root in cold soil. If you have summer pest damage, repair in September after you've treated the underlying problem — not before.
Know What Each Irrigation Zone Covers
Many homeowners have never run their zones individually. Run each zone alone for 15 minutes and observe. A poorly calibrated irrigation system is the root cause of 70% of the lawn problems we evaluate — yet it's free to fix once you know what's happening.
Fertilize When the Soil Is Ready, Not the Calendar
St. Augustine breaks dormancy when soil consistently hits 65°F. In Gainesville that's usually mid-March, but some years it's early April. Fertilizing too early feeds weeds, not grass. A $10 soil thermometer probe from the hardware store removes the guesswork entirely.
New Construction? Grade Before You Sod
Builders leave compacted, grade-irregular soil. Before installing sod on any new construction job, we check for low spots, add topsoil, and ensure water flows away from the foundation. Skipping grading is the #1 cause of drainage-related lawn failure we diagnose — and it's far cheaper to fix before the sod goes down.
Still Have Questions?
We've been doing this in Gainesville since 1995. Call us — we answer the phone, we know your area, and we're happy to give advice with no strings attached.
Thompson's Landscape Solutions · 5104 NW 109th Ln, Gainesville, FL 32653 · thompsod352@gmail.com