When to Plant Tomatoes: Planting Date Calculator for Any Location
Enter your average last spring frost date and get your complete tomato timeline: when to start seeds indoors, when to transplant outside, and when to expect your first ripe tomato. Works for any climate, northern or southern hemisphere.
When to Plant Tomatoes Calculator
Get every key date mapped out: when to start seeds, harden off, transplant, and pick your first ripe tomato.
For the most accurate plan, enter your own last spring frost date.
DON'T KNOW YOUR FROST DATE?
Estimate it from your state and terrain
Heads up: a frost date is a 50/50 average, and the real last frost swings about 2 to 3 weeks either way from year to year. So keep a little buffer and watch the forecast near planting time. If you know your own local last frost date, type it in up top and we will build the most accurate plan we can for you.
The golden rule of tomato timing: the calendar does not matter, your frost date does. Tomatoes are killed by frost and sulk below 50 F, so everything counts backward and forward from your average last spring frost. Start seeds indoors 6 to 8 weeks before it, plant outside a week or two after it, and add your variety’s days to maturity to know when the first ripe fruit lands. That is exactly what the calculator above does for you.
