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Lawn Health AI

Lawn Care by State

Almost every expensive lawn mistake is a timing mistake, and timing is local. The same bag of fertilizer builds roots in one state and feeds weeds in another, because soil, frost dates and growing seasons decide the outcome — not the label.

We publish a state guide only once the agronomy for that state is researched: soil type and pH, USDA zones, real application windows and the threats local extension programs actually document. That is 50 states so far, each feeding 53 localized guides.

Pick your state

Lawn advice is only useful if it is local. Choose a state and we will show what your lawn needs this month, which threats are active there, and the guides written for your grass.

Why your state's grass family decides everything

The United States splits into two turf families with opposite calendars, and a band in the middle where both are grown. Which side you are on determines when you feed, when you seed, how high you mow and which diseases you should expect.

Warm-season states

Bermuda, St. Augustine, Zoysia. Dormant and straw-coloured in winter, growing hardest in summer heat. Fed only after full spring green-up.

Pre-emergent timing, every state

The spring application windows from every state profile, side by side — with the soil-temperature triggers that actually set them.

Open the table

Overseeding window, every state

When to seed or overseed, state by state — including the three states where autumn is the wrong season entirely.

Open the table

What makes a state guide different

A state page is not a national article with the state's name swapped in. Each one is built from researched regional data, so the advice actually changes:

  • Soil and pH

    Alkaline soil locks iron away, so pale turf in Arizona is usually chlorosis rather than hunger — the opposite conclusion to Ohio.

  • Application windows

    Pre-emergent timing runs on soil temperature, which crosses 55°F weeks apart between South Texas and Pennsylvania.

  • Documented threats

    Chinch bugs dominate Gulf Coast St. Augustine; snow mold never appears there at all.

  • Local rules

    Several states restrict phosphorus or set seasonal fertilizer blackouts, and those change what you can legally buy.

Lawn Health Newsletter

Seasonal lawn reminders, on time

Pre-emergent windows, disease alerts and fertilization schedules for your region — one short email, right when your lawn needs it.

Free forever. Unsubscribe anytime. US lawns only (for now). This season's companion: the printable summer checklist.