LAWN CARE THAT KNOWS YOUR YARD
Know exactly what your lawn needs.Before you put anything down.
Free on iPhone and Android · Rated 4.9 ★ on the App Store.
Set your grass and ZIP once. Get this week’s plan, watering progress, safe spray conditions, diagnostics, and a complete application history in one place.
Or use the free lawn tools—no account needed41,488
ZIP codes of live soil data
50
extension & label sources cited
9
free tools, no account needed
6h
soil data refresh cycle
Every rate, timing, and threshold on this site traces to a product label or university extension source. No vibes, receipts.
THE APP · FIELD UNIT
Everything that makes a good lawn feel repeatable.
- 01
Time the application
Soil temperature and GDD say when a product will actually work. The calendar just says what month it is.
- 02
Calculate the rate
Turn a label rate and your real square footage into pounds, ounces, and gallons without napkin math.
- 03
Build the spray
Plan the tank mix, carrier volume, and per-product amounts for the area you are treating.
- 04
Log the result
Keep the date, product, rate, and weather. Next season you repeat what worked instead of guessing.
THE INSTRUMENT PANEL
Every decision on your lawn, backed by a number.
Seasonal schedule
A season plan for your grass type that adjusts to your local soil temperature, not a generic month list.
Application log
Every product, rate, and date in one history you can search when something works (or doesn't).
Diagnostic guide
Work from symptoms to likely causes and extension-sourced fixes, with photos.
170+ product library
Real products with label rates, so logging an app is two taps instead of typing.
GDD and soil temp tracking
Live growing degree days and soil temperature for pre-emergent and PGR timing.
Tank mix planning
Multi-product mixes calculated for your sprayer and your square footage.
FIELD INSTRUMENTS · FREE
Do the math before you download.
Nine free lawn care calculators and live trackers, working right now with no account. When you want the season handled automatically, the app picks up where these leave off.
LIVE · DALLAS, TX · 2 IN
88.1°F
Soil Temperature Tracker
Live soil temps at 3 depths with your pre-emergent window marked on the meter.
HEAT UNITS · SEASON + PGR
GDD
GDD Calculator
Track seasonal heat accumulation and PGR reapplication timing from any US ZIP.
SATELLITE · DRAW YOUR YARD
Lawn Measurement Tool
Draw your lawn on satellite imagery and get its real square footage.
Price Board
Live prices for lawn products tracked across retailers, with drop alerts
Fertilizer Calculator
Pounds of product from your target nitrogen rate
Tank Mix Calculator
Per-product amounts for your sprayer volume
Spray Rate Calculator
Product and carrier totals from the label rate
Grass Seed Calculator
Seed pounds from area and extension seeding rates
Irrigation Runtime Calculator
Sprinkler minutes from a catch-can test
SEASON PROTOCOLS
Pick the grass, then work the season.
THE FAQ FILE
Common questions
- What does Lawn Dominator help you track?
- Lawn Dominator helps you track fertilizer, herbicide, fungicide, insecticide, and PGR applications, plus soil temperature, GDD, weather-aware spray timing, diagnostics, and tank mixes.
- Who is Lawn Dominator for?
- It is built for serious DIY lawn care users who want one place to run a Bermuda, Zoysia, St. Augustine, or cool-season lawn program without relying on Notes or spreadsheets.
- Does Lawn Dominator work for soil temperature and GDD tracking?
- Yes. The app includes soil temperature tracking and growing degree day tracking to help with pre-emergent timing, PGR reapplication windows, and other seasonal lawn decisions. PGR GDD is tracked in Celsius-scale GDD, using a 0°C base for cool-season trinexapac sessions and a 10°C base for warm-season trinexapac sessions.
- Is there a free soil temperature tracker for lawn care?
- Yes. Lawn Dominator offers a free browser-based soil temperature tracker at lawndominators.com/soil-temperature, no account or app download required. It shows current soil temperature at surface, 2-inch, and 6-inch depth with a 7-day trend and pre-emergent timing guidance for bermuda, zoysia, St. Augustine, and cool-season grass.
- Is there a free GDD calculator for lawns?
- Yes. Lawn Dominator offers a free growing degree day (GDD) calculator at lawndominators.com/gdd-tracker, no account required. It shows seasonal GDD accumulation from January 1, lets you calculate GDD from any date for PGR reapplication timing, and shows pre-emergent and greenup milestones for bermuda, zoysia, St. Augustine, and cool-season grass.
Your lawn finally keeps score.
Set your grass type and ZIP once, and let the app watch the soil, the weather, and the season for you.
Free to download on iPhone and Android.