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Can You Grow Tomato in Illinois?

US · USDA Zone 5b · zones 4a, 4b, 5a, 5b, 6a

Grows well here

Tomatoes grow well here — plant after your last frost date and expect harvest within 60-85 days.

Plant zones

4a–11b

Illinois last frost

early April

Illinois first frost

late October

Days to harvest

60–85 days

When to plant Tomatoes in Illinois

Start indoors

Feb 23

Transplant

Apr 7

Harvest

Jun 6 – Jul 1

Dates are approximate, based on Illinois's average frost dates. Your exact yard may vary by microclimate.

About Tomato

One of the most popular garden vegetables — thrives in warm weather and full sun with consistent moisture.

Start seeds indoors 6-8 weeks before last frost. Plant deeply — tomatoes root along buried stems. Water consistently to prevent blossom end rot.

Full tomato growing guide →

Gardening in Illinois

Illinois has a humid continental climate with hot summers and cold winters. Chicago is Zone 5b-6a; southern Illinois is warmer at Zone 6-7. Classic Midwest growing region.

See what grows well in Illinois →

Frequently asked questions

Can you grow Tomato in Illinois?

Tomatoes grow well here — plant after your last frost date and expect harvest within 60-85 days.

What zone is Illinois?

Illinois spans USDA Zone 5b (4a, 4b, 5a, 5b, 6a).

When do you plant Tomatoes in Illinois?

Plant Tomatoes around early April (start indoors Feb 23), harvest Jun 6 – Jul 1.