Seed starting date calculator
PROStart-indoors date based on weeks before last frost.
Inputs
Result
Start seeds
52 d before frost
In weeks
7.4 wk
The formula
Days = weeks × 7 + days to germinate.
Worked example
6 wk + 10 d germination = 52 days before your last frost.
Frequently asked
›How do I find last frost?
Search your zip on NOAA or Farmer's Almanac's frost dates page.