๐ค๏ธ Weather
Growing Season Calculator
The growing season runs between the last frost of spring and the first frost of autumn, and its length decides what you can realistically ripen. Cold-hardy crops need only a short window, but tomatoes and squash need the full run.
How it works
Last frost in spring
First frost in autumn
What you are growing
Growing season
Growing season
Growing season
Safe planting window
Latest safe harvest date
Suitable crop types
Frost-free
Frequently asked questions
How do I use the Growing Season Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.