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Can You Grow Swiss Chard in Illinois?

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

Grows well here

Swiss chard grows excellently here — cold-tolerant and productive continuously through the season.

Plant zones

2a–10b

Illinois last frost

early April

Illinois first frost

late October

Days to harvest

50–60 days

When to plant Swiss Chard in Illinois

Direct sow

Apr 7

Harvest

May 27 – Jun 6

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

About Swiss Chard

Swiss chard is one of the most productive and cold-tolerant leafy greens — beautiful and nutritious.

Direct sow in spring or fall. Harvest outer leaves continuously. Survives light frost. More heat-tolerant than spinach. Excellent for containers and indoor growing under lights.

Full swiss chard 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.