Lawn Science
Unlocked.
Move beyond guesswork. Patch uses AI photo diagnosis and hyper-local weather to build the exact plan your grass is craving — for your zip, your soil, your cultivar.
98%
Weed ID accuracy
— The Core Three
Diagnose. Plan. Ask anything.
Every Patch decision runs through the same three engines — trained on university turf science, tuned to your yard.
AI Photo Diagnosis
Snap a photo of any patch, weed, or lesion. Our vision model identifies weed species, nutrient deficiencies, and fungal patterns in seconds — with references.
See a samplePersonalized Plan
A hyper-local schedule built around your soil temperature, upcoming rainfall, GDD, and your specific grass cultivar — updated as conditions change.
Patch — Your AI Helper
24/7 chat trained on turf science. Ask about fertilizer rates, mower blade heights, weed timing, or read your last diagnosis back out loud.
Chat with Patch— How Patch Works
From a photo to a fix, in under a minute.
Tell us about your lawn
Enter your zip and grass type once. Patch pulls your climate zone, soil temp, and GDD automatically.
Snap the trouble spot
One photo. Patch identifies the issue, why it's happening now, and the safest window to treat it.
Follow the plan
A living schedule of what to do this week, what to buy, and when to check back in — synced to your weather.
— The Professional Toolkit
Every data point you need.
The same tools professional groundskeepers use — quietly running for your yard.
Real-time
Soil Temp Tracker
Growth signal
GDD & Growth Tracking
Growing Degree Days synced with your local weather station to predict weed emergence, pest cycles, and grass response.
Precision
Lawn Measurement
Living schedule
Dynamic Care Calendar
Coverage math
Fertilizer & Grass-Seed Calculator
Enter your bag rate and lawn size — get the exact number of bags to buy, rounded up.
— What early users are saying
Diagnosed my dollar spot in one photo. I've been guessing wrong for two summers.
The plan actually knows when it rained here. Every other app just spits out a generic calendar.
Ask Patch replaced three subreddits and a group chat with my dad.
— Frequently Asked
Common questions.
How accurate is the AI diagnosis?
Patch is trained on university-grade turf photos and cross-references your climate zone before suggesting a cause. When it isn't sure, it says so — and points you to a photo it needs instead.
Do I need to know my grass type?
No. Patch can help identify it from a photo, or infer likely candidates from your zip. You can always refine it later in your profile.
Is the plan the same for everyone?
No. Every plan is built from your grass type, soil temp, GDD accumulation, and recent rainfall — and re-anchors when your profile or the weather changes.
What does it cost?
Your first diagnosis is free. After that, Patch offers a subscription for unlimited diagnoses, the living plan, and the Ask Patch chat helper.
Do you sell my photos or location?
No. Photos are stored only long enough to generate your diagnosis. Location is used to pull weather and nothing else.
When is the iOS app launching?
Soon. Join the waitlist and we'll email you the moment it's live on the App Store.
Ready to build the lawn of your dreams?
Free first diagnosis · No credit card required