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When to Plant Radicchio in Manitoba

Radicchio is an Italian chicory with stunning red and white leaves and a pleasantly bitter flavor. It forms tight heads and is used in salads, grilled, or braised.

Manitoba spans USDA hardiness zones 4a, 4b (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 Radicchio planting dates based on your local frost dates.

Radicchio Planting Calendar for Manitoba

โ–ธ Zone 4a ~145 day growing season ยท Full guide โ†’

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

Activity When Date Range
Start Indoors March 25 Mar 25 โ€“ Apr 8
Transplant Outdoors May 6 May 6 โ€“ May 20
Direct Sow April 29 Apr 29 โ€“ May 20
Fall Sowing July 6 Jul 6 โ€“ Jul 20
Harvest July 8 Jul 8 โ€“ Aug 12
โ–ธ Zone 4b ~155 day growing season ยท Full guide โ†’

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

Activity When Date Range
Start Indoors March 20 Mar 20 โ€“ Apr 3
Transplant Outdoors May 1 May 1 โ€“ May 15
Direct Sow April 24 Apr 24 โ€“ May 15
Fall Sowing July 11 Jul 11 โ€“ Jul 25
Harvest July 3 Jul 3 โ€“ Aug 7

Growing Tips for Manitoba

Start in late summer for fall harvest. The red color develops with cool nights and light frost. Harvest when heads are firm and compact.

Frequently Asked Questions

When should I plant Radicchio in Manitoba?

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

What zone is Manitoba for planting?

Manitoba contains USDA hardiness zones 4a, 4b. Your specific zone depends on your location within the state โ€” 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.