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Vegetable planting calendar by frost date
Enter your average last spring frost and first autumn frost. Get sowing and planting windows for twelve popular vegetables, worked out from your own dates.
- Free to use
- No sign-up
- Runs in your browser
- Nothing you type is sent anywhere
Your frost dates
Find your average frost dates from your local extension service, gardening group or weather service.
When to plant
Want to save this and come back to it? Storm Garden keeps everything on your own device. See Storm Garden.
Plan the whole garden, not just the dates
Storm Garden takes your frost dates and builds a full season plan, then helps you lay out beds, track plantings and log every harvest.
- Sowing planner for 53 plants
- Bed layouts with companion checks
- Tasks, watering and pest log
- Harvest log and season reports
One payment. No subscription. Works offline and your data stays on your device.
How frost dates shape your planting calendar
Your average last spring frost and first autumn frost decide almost every sowing date. Tender crops like tomatoes, peppers, beans and cucumbers cannot take frost and go outside after the last frost. Hardy crops like peas, spinach and lettuce can be sown a few weeks before it.
Starting seeds indoors
Slow crops such as tomatoes, peppers and onions are started indoors six to twelve weeks before the last frost, then planted out once the weather warms.
Autumn sowing
Counting back from the first autumn frost gives a second window for quick, cool-season crops like lettuce, spinach, radishes and carrots.
Adjust for your garden
These windows are typical guidance. Soil temperature, local weather and the variety you grow all matter, so check seed packets and watch the forecast.
Read more: How to plan a vegetable garden layout: beds, spacing and timing.
Frequently asked questions
How do I find my frost dates?
Your local extension service, gardening club or national weather service publishes average first and last frost dates for your area.
Does this work in the Southern Hemisphere?
Yes. Enter your own local frost dates and the windows are worked out from them.
What if I have no frost?
In frost-free climates, timing depends more on heat and rainfall. Storm Garden includes frost-free climate presets.
Can I see more plants?
Storm Garden includes 53 vegetables, herbs, fruit and flowers, and you can add your own varieties.
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