Perennial

When to Plant Hostas in Minnesota

The king of shade gardens. Hostas come in hundreds of varieties and get more beautiful with each passing year.

The Short Answer

In Minnesota, plant hostas based on your regional frost dates. Northern Minnesota has a last frost around May 15 - Jun 1, while Southern Minnesota sees frost end around Apr 25 - May 10. Long, cold winters. Warm summers. Short but productive growing season with long summer days. Hardy varieties essential.

Minnesota Frost Dates

Your planting dates depend on which part of Minnesota you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Northern Minnesota 3a, 3b May 15 - Jun 1 Sep 5 - Sep 20
Central Minnesota 3b, 4a May 5 - May 20 Sep 15 - Oct 1
Southern Minnesota 4a, 4b Apr 25 - May 10 Sep 25 - Oct 10

Hostas Planting Schedule for Minnesota

Northern Minnesota (Zones 3a, 3b)

Average last frost: May 15 - Jun 1 · Average first frost: Sep 5 - Sep 20

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Central Minnesota (Zones 3b, 4a)

Average last frost: May 5 - May 20 · Average first frost: Sep 15 - Oct 1

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Southern Minnesota (Zones 4a, 4b)

Average last frost: Apr 25 - May 10 · Average first frost: Sep 25 - Oct 10

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Growing Hostas in Minnesota

Hostas in Minnesota's Climate

Your climate is hosta heaven. Cold winters provide necessary dormancy, moderate summers prevent heat scorch, and abundant shade from deciduous forests creates ideal growing conditions. Michigan, Minnesota, and Wisconsin grow some of the finest hostas in the country. The only pest concern is slugs — iron phosphate bait handles them.

Soil Considerations for Minnesota

Rich prairie soils in south and west. Rocky and thin soils in north. Generally excellent for gardening in southern half.

Minnesota Climate & Growing Season

Long, cold winters. Warm summers. Short but productive growing season with long summer days. Hardy varieties essential. Hostas can handle frost well, which is an advantage in Minnesota's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across Minnesota: Northern Minnesota (3a, 3b) has a last frost around May 15 - Jun 1, while Southern Minnesota (4a, 4b) sees frost end around Apr 25 - May 10. This difference matters for hostas — adjust your planting dates to match your specific region.

Growing Tips

Plant divisions or nursery plants in spring or fall. Slugs are the main enemy — use iron phosphate bait. Mulch to retain moisture.

Companion Planting

Plant hostas alongside these companions for better growth:

Ferns Astilbe Heuchera

The Bottom Line

Hostas can be grown successfully across Minnesota, but your exact planting dates depend on which region you're in. Northern Minnesota gardeners should plan around a May 15 - Jun 1 last frost, while those in Southern Minnesota can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Hostas Growing Guide National planting guide with all states Minnesota Planting Calendar All plants for Minnesota Hostas in Alabama Alabama planting dates Hostas in Alaska Alaska planting dates Hostas in Arizona Arizona planting dates Hostas in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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