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Can You Grow Butternut Squash in Ohio?

US · USDA Zone 5b · zones 5a, 5b, 6a

Grows well here

Butternut squash thrives here with warm, frost-free summers and full sun.

Plant zones

3a–10b

Ohio last frost

early April

Ohio first frost

late October

Days to harvest

100–120 days

When to plant Butternut Squashes in Ohio

Start indoors

Mar 10

Transplant

Apr 7

Harvest

Jul 16 – Aug 5

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

About Butternut Squash

Butternut squash is the most popular winter squash — sweet, smooth, and superb for storage. A vigorous vining plant that needs warm weather and room to sprawl.

Direct sow after last frost or start indoors 3-4 weeks earlier. Harvest when skin turns tan and hard. Cure 1-2 weeks in a warm spot before storing in a cool dry place.

Full butternut squash growing guide →

Gardening in Ohio

Ohio has a humid continental climate. Northern Ohio near Lake Erie is Zone 6a; inland areas are Zone 5b. Four seasons with a productive 6-month growing window.