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Can You Grow Swiss Chard in Pennsylvania?

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

Grows well here

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

Plant zones

2a–10b

Pennsylvania last frost

early April

Pennsylvania first frost

late October

Days to harvest

50–60 days

When to plant Swiss Chard in Pennsylvania

Direct sow

Apr 1

Harvest

May 21 – May 31

Dates are approximate, based on Pennsylvania'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 Pennsylvania

Pennsylvania has a humid continental climate. Philadelphia is Zone 7a; Pittsburgh is Zone 6a; northern Pennsylvania is Zone 5a-5b. Four distinct seasons with a 6-7 month growing window.