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Can You Grow Butternut Squash in Indiana?

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

Indiana last frost

early April

Indiana first frost

late October

Days to harvest

100–120 days

When to plant Butternut Squashes in Indiana

Start indoors

Mar 10

Transplant

Apr 7

Harvest

Jul 16 – Aug 5

Dates are approximate, based on Indiana'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 Indiana

Indiana has a humid continental climate. Northern Indiana is Zone 5a-5b; southern Indiana is warmer at Zone 6a. Four distinct seasons with a 5-6 month growing window.