Built for serious lawn enthusiasts who want more than generic gardening advice.
Create custom lawn zones with names, colors, grass type, soil type, and sun exposure. Draw zones directly on a map using polygon tools, then Lawn Guardian automatically calculates square footage and acreage for each area.
Track mowing, watering, aeration, seeding, overseeding, dethatching, fertilizing, herbicide applications, pest control, pH adjustments, and soil tests. Log across multiple zones, attach weather conditions, and keep a permanent timestamped record.
ET-based depletion tracking, root-zone moisture modeling, rainfall credit, soil type, and grass-specific crop coefficients estimate when each zone needs water. See depletion levels, stress indicators, and session timers for moving sprinklers between positions.
When you overseed, Lawn Guardian adjusts recommendations for the establishment window. It tracks the renovation phase and helps you stay on top of the more frequent watering needs young grass requires.
14-day forecast, 48-hour hourly conditions, rainfall history, UV index, growing degree days, soil moisture estimates, and frost date tracking. Lawn Guardian uses that data to help time crabgrass pre-emergent, mowing, watering, and renovation work.
Each zone gets a 0–100 health score based on mowing, watering, fertilizing, timing, soil test data, aeration, dethatching, dormancy, and establishment status. Track whether a zone is improving, declining, or holding steady — and catch problems early.
Prioritized recommendations based on season, grass type, weather, depletion level, recent activity, health score changes, and safety preferences — including pre-emergent timing, re-entry safety reminders, and overdue mowing alerts.
Calculate how much fertilizer, pesticide, seed, or lawn product you need based on zone size and application rate. Built-in tools for cost per application, sprinkler calibration, sprinkler coverage, and traveling sprinkler planning.
When you log a pesticide or herbicide application, Lawn Guardian tracks the re-entry interval and shows a live countdown with pet and child safety reminders. Know exactly when it's safe again.
Not sure what grass you have? The built-in 7-step identification tool narrows down turfgrass types including Tall Fescue, Kentucky Bluegrass, Bermuda, Zoysia, St. Augustine, Centipede, and more.
Export activity history as CSV, schedules as .ics calendar files, and back up or restore your full Lawn Guardian data with JSON import/export. Your data is yours — always.
Schedule reminders for mowing, watering, fertilizing, aeration, dethatching, overseeding, and pesticide applications. Get high depletion alerts, overdue task nudges, and weekly summary digests.
Lawn Guardian is not a generic gardening app. It's for people who want precise answers based on their specific zones, grass, soil, and weather history.
No fluff. Just better lawn decisions. Every feature is built around helping you make smarter choices with less guesswork.
No engagement tricks. No "water twice a week" generic advice. No scattered notebooks or mystery application dates.
Just zones, logs, weather, calculations, recommendations, reminders, and clear next steps.
Lawn Guardian is designed to keep working even without a signal. Your zones, logs, settings, reminders, and lawn history stay available offline — always.
No selling your lawn habits. No unnecessary accounts. Lawn Guardian is built around a local-first model so your lawn data stays with you — not on our servers.
No credit card. No cost during beta. Just a clean, efficient utility designed to help you work — not sell you more fertilizer.
Lawn Guardian is currently in closed beta. Free to try. No credit card. No cost during beta.