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Can You Grow Cauliflower in Manitoba?

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

Grows well here

Cauliflower grows well here if you time it for your cool season — fall crops are often more reliable than spring.

Plant zones

2a–11b

Manitoba last frost

mid-May

Manitoba first frost

late September

Days to harvest

60–100 days

When to plant Cauliflowers in Manitoba

Start indoors

Apr 3

Transplant

May 15

Harvest

Jul 14 – Aug 23

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

About Cauliflower

Cauliflower is one of the most rewarding cool-season brassicas — and one of the trickiest. It forms a dense white head that needs steady cool weather and consistent moisture.

Start indoors 6 weeks before last frost; transplant 2-3 weeks before last frost. Blanch heads by tying leaves over them once they're 2-3 inches across. Harvest before curds loosen.

Full cauliflower 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.