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Can You Grow Butternut Squash in Manitoba?

Canada · Canadian Zone 3 · zones 2, 3, 4

Grows well here

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

Plant zones

3a–10b

Manitoba last frost

mid-May

Manitoba first frost

late September

Days to harvest

100–120 days

When to plant Butternut Squashes in Manitoba

Start indoors

Apr 17

Transplant

May 15

Harvest

Aug 23 – Sep 12

Dates are approximate, based on Manitoba'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 Manitoba

Manitoba has a cold continental climate. Winnipeg is Zone 3b-4a. Cold winters and hot summers make for an intense but short growing season. Excellent for sunflowers, canola, and cool-season vegetables.