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Can You Grow Winter Squash in Manitoba?

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

Grows well here

Winter squash grows well here with warm summers — it needs heat to mature and set fruit.

Plant zones

3a–10b

Manitoba last frost

mid-May

Manitoba first frost

late September

Days to harvest

90–120 days

When to plant Winter Squashes in Manitoba

Start indoors

Apr 17

Transplant

May 15

Harvest

Aug 13 – Sep 12

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

About Winter Squash

Winter squash (butternut, acorn, spaghetti) are the long-storing hard-skinned squash you plant in spring and harvest in fall. Vigorous, sprawling, and highly productive.

Direct sow or start indoors 4 weeks before last frost; transplant after frost. Give vines room (6-8 ft) or a trellis. Harvest when skin is hard and you can't dent it with a fingernail. Cure in a warm place for 1-2 weeks for long storage.

Full winter 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.