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Manitoba Planting Calendar

Manitoba spans USDA hardiness zones 2b, 3a, 3b, 4a. Planting dates vary significantly across the state depending on your zone. Find your county on the map below for exact frost dates and planting windows.

Find Your County

Click any county to see your local planting calendar with exact frost dates and planting windows.

Zones in Manitoba

Growing Season Comparison

Frost Dates & Growing Season by County

View all 8 Manitoba counties with frost dates
County Zone Last Frost First Frost Growing Days
Brandon 4a May 15 Oct 2 140
Dauphin 4a May 17 Oct 4 140
Hanover 4b May 8 Oct 2 147
Morden-Winkler 4b May 8 Oct 2 147
Portage la Prairie 4a May 15 Oct 2 140
Selkirk 4b May 9 Oct 3 147
Thompson 3b May 25 Sep 29 127
Winnipeg 4b May 8 Oct 2 147

🥬 Vegetables

Browse all 115 vegetables you can grow in Manitoba

🍓 Fruits

Browse all 34 fruits you can grow in Manitoba

🌿 Herbs

Browse all 39 herbs you can grow in Manitoba

🌸 Flowers

Browse all 54 flowers you can grow in Manitoba

Monthly Planting Guide for Manitoba

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.