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Can You Grow Pumpkin in Illinois?

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

Grows well here

Pumpkins grow well here — they love the warm season and produce reliably with enough space.

Plant zones

3b–11b

Illinois last frost

early April

Illinois first frost

late October

Days to harvest

75–100 days

When to plant Pumpkins in Illinois

Start indoors

Mar 17

Transplant

Apr 7

Harvest

Jun 21 – Jul 16

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

About Pumpkin

Pumpkins need space warmth and sun — allow 2-4 square metres per plant for sprawling vines.

Direct sow or start indoors 3 weeks before last frost. Give each plant 2-4 sq metres. Water at the base to prevent fungal disease. Harvest when the skin is hard and the stem dries.

Full pumpkin 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.