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When to Plant Serviceberries in Wisconsin

Serviceberries (saskatoons) are attractive native shrubs or small trees producing sweet, blueberry-like fruits. They have beautiful spring flowers and vibrant fall color.

Wisconsin spans USDA hardiness zones 3b, 4a, 4b, 5a, 5b (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

Find Your County

Click your county for exact Serviceberries planting dates based on your local frost dates.

Serviceberries Planting Calendar for Wisconsin

Zone 3b ~135 day growing season · Full guide →

Last frost: May 10 · First frost: September 22 · 135 day season

Activity When Date Range
Transplant Outdoors June 7 Jun 7 – Jun 21
Zone 4a ~145 day growing season · Full guide →

Last frost: May 6 · First frost: September 28 · 145 day season

Activity When Date Range
Transplant Outdoors June 3 Jun 3 – Jun 17
Zone 4b ~155 day growing season · Full guide →

Last frost: May 1 · First frost: October 3 · 155 day season

Activity When Date Range
Transplant Outdoors May 29 May 29 – Jun 12
Zone 5a ~166 day growing season · Full guide →

Last frost: April 25 · First frost: October 8 · 166 day season

Activity When Date Range
Transplant Outdoors May 16 May 16 – May 30
Zone 5b ~178 day growing season · Full guide →

Last frost: April 18 · First frost: October 13 · 178 day season

Activity When Date Range
Transplant Outdoors May 9 May 9 – May 23

Growing Tips for Wisconsin

Plant in well-drained soil. Minimal pruning needed beyond removing dead wood. Protect fruit from birds with netting. Berries ripen in early summer and are excellent fresh or in pies.

Frequently Asked Questions

When should I plant Serviceberries in Wisconsin?

Planting dates for Serviceberries in Wisconsin depend on your USDA zone. Wisconsin spans zones 3b, 4a, 4b, 5a, 5b. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Wisconsin for planting?

Wisconsin contains USDA hardiness zones 3b, 4a, 4b, 5a, 5b. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.