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Can You Grow Zucchini in Pennsylvania?

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

Grows well here

Zucchini thrives here and is one of the easiest most productive crops you can grow.

Plant zones

4a–11b

Pennsylvania last frost

early April

Pennsylvania first frost

late October

Days to harvest

45–60 days

When to plant Zucchinis in Pennsylvania

Start indoors

Mar 11

Transplant

Apr 1

Harvest

May 16 – May 31

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

About Zucchini

One of the most productive garden plants — a single zucchini plant can yield more than a family can eat at peak season.

Direct sow after last frost. Give each plant 2-4 sq metres of space. Water at the base to prevent fungal disease. Pick frequently to keep the plant producing.

Full zucchini 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.