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Can You Grow Swiss Chard in Iowa?

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

Grows well here

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

Plant zones

2a–10b

Iowa last frost

mid-April

Iowa first frost

mid-October

Days to harvest

50–60 days

When to plant Swiss Chard in Iowa

Direct sow

Apr 15

Harvest

Jun 4 – Jun 14

Dates are approximate, based on Iowa'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 Iowa

Iowa has a humid continental climate with cold winters and warm summers. Most of the state is Zone 5a-5b. Excellent for cool-season crops and hardy fruits.