Frost Free Planting Date Calculator
Find your frost free window so you plant tender crops after the cold has passed and harvest before it returns. Enter your average last spring frost date and first fall frost date, and the calculator returns the number of frost free days in between, which is your effective growing season. It also suggests a safe outdoor planting date a buffer of days after the last frost, since a late cold snap can still nip warm season plants like tomatoes, peppers and basil. Knowing the season length tells you whether a long maturing variety has time to ripen, or whether you should choose a quicker one. Look up your local frost dates from an extension service, then plan here instantly in your browser with no signup.
How to use Frost Free Planting Date Calculator
- Enter your last spring frost date.
- Enter your first fall frost date.
- Read the safe planting window between the two dates.
- Read the growing season length in days.
Frequently asked questions
How does it define the safe planting window?
It uses your last spring frost as the earliest safe planting date and your first fall frost as the closing date, giving the frost-free window between them.
How is the growing season length found?
It counts the days between the last spring frost and the first fall frost, which is the length of your frost-free growing season.
Why does the growing season length matter?
Each crop needs a minimum number of frost-free days to mature, so knowing your season length tells you which varieties can finish before fall frost.
What is Frost Free Planting Date Calculator?
Find your frost free window so you plant tender crops after the cold has passed and harvest before it returns. Enter your average last spring frost date and first fall frost date, and the calculator returns the number of frost free days in between, which is your effective growing season.
Is Frost Free Planting Date Calculator free to use?
Yes. Frost Free Planting Date Calculator is completely free, with no sign-up and no usage limits.
Does Frost Free Planting Date Calculator work in a web browser?
Yes. Frost Free Planting Date Calculator runs in any modern web browser. There is nothing to download or install.
Is my data private with Frost Free Planting Date Calculator?
Yes. Frost Free Planting Date Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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