Frostline

Seed starting, planned around your frost dates.

Every seed packet says "sow 6 weeks before your last frost". Frostline is the app that knows when your last frost is — and turns every packet on your shelf into dates on a calendar.

Tell it where you garden. It finds the nearest weather station in NOAA's 1991–2020 frost normals, shows you your season, and builds the year around it: when to start indoors, when to transplant, when to direct sow, when to expect the first harvest, and when to get the fall crops in before the cold returns.

No account. No sign-up. The planning works with no signal at all. Your garden syncs across your devices through your own iCloud account — never through a Frostline server, because there isn't one.

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