Free garden tools

Plan around your local growing season

Estimate frost dates from historical weather, then turn those dates into a practical sowing, transplanting, and harvest timeline.

Frost date calculator

Find your typical frost window

Search for a town, city, or postal code, or use your current location. We analyze 30 complete years of daily minimum temperatures.

Crop timeline calculator

Choose a crop and anchor the plan to your expected last spring frost. Adjust the date if your garden has a different microclimate.