How is this calendar personalized?

It is built from a per-state agronomic database — USDA hardiness zones, soil profile, humidity, frost dates, documented disease and weed pressure, application timing windows and local fertilizer regulations. Tasks that name a different grass species than the one you select are filtered out, so a Bermuda owner never sees fescue instructions.

Are the application windows exact dates?

They are ranges tied to soil temperature and regional climate rather than fixed calendar dates, because that is how turfgrass actually responds. Pre-emergent timing, for example, follows soil temperature crossing roughly 55°F — which can shift two to three weeks year to year.

Can I save or print the calendar?

Yes. Use the print button to save it as a PDF or print a copy for the garage. Optionally, you can also get an email reminder shortly before each window opens.

Timing beats effort in lawn care

Your lawn's entire year, planned in ten seconds.

Two questions. In return: your pre-emergent window, feeding schedule, seeding dates, the threats to scout for and the local rules that apply — all built from real agronomic data for your state.

No signup. No email required to see your calendar.

Application windows

Pre-emergent, weed spray, feeding and seeding — timed to your region's soil temperatures.

Season by season

Four task lists filtered to your grass type, so you never read instructions for someone else's lawn.

Threat watchlist

The diseases, weeds and pests actually documented in your state.

Local rules

Fertilizer blackouts and restrictions that apply where you live.

Why lawn care is mostly a timing problem

Almost every expensive lawn mistake is a timing mistake rather than a product mistake. Pre-emergent applied two weeks late does nothing at all, because the seeds it was meant to stop have already germinated. Nitrogen applied to a cool-season lawn in July feeds fungus more than it feeds grass. Seed sown in May in the North dies in the first heat wave. The bag on the shelf is rarely the problem; the week you opened it usually is.

Worse, the correct week is not the same for everyone. Soil temperature drives germination, and it crosses the critical thresholds weeks apart between the Gulf Coast and the Great Lakes. Grass species matters just as much: fescue is fed in autumn and left alone in summer, while Bermuda wants the opposite. Generic monthly checklists fail because they average all of that away.

What this calendar does

It combines your state's documented conditions — USDA zones, soil profile, humidity, frost dates, application windows and local fertilizer regulations — with the requirements of your specific grass type, then filters the task list so you only see instructions that apply to your lawn. Tasks naming a different species are removed rather than left for you to sort through.

Treat the windows as ranges, not appointments

Every window here is expressed against a biological trigger, usually soil temperature, because that is what the plant responds to. A window that reads "early March when soil temperatures approach 55°F" may arrive in late February one year and late March the next. Watch the trigger, not the date.

The guides behind the calendar

Each window this tool prints has a full guide behind it. Spring turns on pre-emergent timing; summer is mostly watering discipline and knowing whether a brown lawn is dead or dormant. Fall is the season most lawns are actually won or lost: fall lawn care, the overseeding window, the winterizer feeding timed to the last mow, and mowing the leaves in instead of raking them. And if fall gets away from you, dormant seeding is the deliberate late window that beats waiting for spring. Every season also exists as a printable one-page checklist: spring, summer, fall and winter.