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Can You Grow Butternut Squash in Connecticut?

US · USDA Zone 6a · zones 5b, 6a, 6b

Grows well here

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

Plant zones

3a–10b

Connecticut last frost

early April

Connecticut first frost

late October

Days to harvest

100–120 days

When to plant Butternut Squashes in Connecticut

Start indoors

Mar 3

Transplant

Apr 1

Harvest

Jul 10 – Jul 30

Dates are approximate, based on Connecticut'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 Connecticut

Connecticut has a humid continental climate with warm summers and cold winters. Four distinct seasons support a classic New England growing calendar.

See what grows well in Connecticut →

Frequently asked questions

Can you grow Butternut Squash in Connecticut?

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

What zone is Connecticut?

Connecticut spans USDA Zone 6a (5b, 6a, 6b).

When do you plant Butternut Squashes in Connecticut?

Plant Butternut Squashes around early April (start indoors Mar 3), harvest Jul 10 – Jul 30.