Seed & Season Free tools
Enter your average last spring frost date and pick your crops. You'll get the week to start seeds indoors, transplant and sow outside, worked out the way experienced growers do it.
Dates use typical offsets from the last frost. Your seed packet and soil temperature have the final say: a soil thermometer is the best $10 a gardener spends.
Does this inside Claude for any crop.
Everything in the free skill, plus bed layouts, succession sowing, fall crops, seed orders and plant problem diagnosis.
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Gardeners time almost everything from one date: the average last spring frost. Tomatoes go out a week or two after it, peas go in a month or more before it, and peppers start indoors about two months ahead. This calculator applies those standard offsets to your date.
Hardiness zones don't tell you frost dates: two towns in the same zone can be weeks apart. Look up the average last frost for the nearest weather station from your provincial or state extension service, national climate normals, or a local garden club. An average date still has roughly a 50% chance of a later frost, so tender crops wait for warm soil, not just the calendar.
Beans rot in soil under about 60°F (16°C), and squash sulks under 65°F (18°C). Peas and spinach germinate from about 40°F (4°C). Check soil 2 to 4 inches deep in the morning before you sow.
Seedlings grown indoors need 7 to 10 days of gradual outdoor time before transplanting: an hour or two in shade at first, building to full sun and nights outside.
