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Can You Grow Zucchini in Iowa?

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

Grows well here

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

Plant zones

4a–11b

Iowa last frost

mid-April

Iowa first frost

mid-October

Days to harvest

45–60 days

When to plant Zucchinis in Iowa

Start indoors

Mar 25

Transplant

Apr 15

Harvest

May 30 – Jun 14

Dates are approximate, based on Iowa'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 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.