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Can You Grow Butternut Squash in North Dakota?

US · USDA Zone 4a · zones 3a, 3b, 4a, 4b

Grows well here

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

Plant zones

3a–10b

North Dakota last frost

late April

North Dakota first frost

early October

Days to harvest

100–120 days

When to plant Butternut Squashes in North Dakota

Start indoors

Mar 28

Transplant

Apr 25

Harvest

Aug 3 – Aug 23

Dates are approximate, based on North Dakota'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 North Dakota

North Dakota has a harsh continental climate with cold winters and short warm summers. Most of the state is Zone 3b-4a. Focus on cold-hardy crops and short-season varieties.

See what grows well in North Dakota →

Frequently asked questions

Can you grow Butternut Squash in North Dakota?

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

What zone is North Dakota?

North Dakota spans USDA Zone 4a (3a, 3b, 4a, 4b).

When do you plant Butternut Squashes in North Dakota?

Plant Butternut Squashes around late April (start indoors Mar 28), harvest Aug 3 – Aug 23.