Free garden tool
Planting Date Planner
Calculate seed-starting and planting dates from your own local frost dates and trusted growing instructions.
Designed for safer planning: this tool calculates dates from information you provide. It does not predict frost or guarantee that a date is safe for planting.
Entries stay in this browser. This tool does not send your entries to NutriHarvest.
Spring Planting Date Planner
Turn “X weeks before/after frost” instructions into calendar dates.
Sources for timing examples
Examples are broad Extension guidance, not variety-specific instructions. Your seed packet and local Extension guidance take priority.
Use a trusted local average, not today's forecast.
Find your local last spring freeze date (U.S. map)
Historical 50% freeze chance, not a forecast. Check local conditions before planting.
Historical 50% freeze chance, not a forecast. Check local conditions before planting.
For “after frost,” enter 0 in both boxes.
Fall Planting Deadline
Work backward from your average first fall frost using the days-to-maturity printed on your seed packet.
Fall growth often slows as days shorten. You choose the extra planning buffer instead of NutriHarvest assuming one is right for every crop or climate.
Editable. Check your seed packet or local Extension source.
Use this responsibly
- Use an average frost date from a trusted local source. Average frost dates are not guarantees.
- Use timing from your specific seed packet or local Cooperative Extension whenever possible.
- Soil temperature, current weather, microclimate, elevation, variety, row covers and growing method can shift practical planting dates.
- If current weather is unusual, local guidance takes priority over this calculated calendar date.
