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When to Plant Crosne in Utah

Crosne (Chinese artichoke) produces small, segmented white tubers with a crunchy texture and mild artichoke-nutty flavor. They are a rare delicacy in French cuisine.

Utah spans USDA hardiness zones 4b, 5a, 5b, 6a, 6b, 8a (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 Crosne planting dates based on your local frost dates.

Hover over a county to see details. Click to view planting guide.

Crosne Planting Calendar for Utah

Zone 4b ~155 day growing season · Full guide →

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

Activity When Date Range
Direct Sow April 24 Apr 24 – May 15
Harvest September 25 Sep 25 – Sep 18
Fall Sowing July 11 Jul 11 – Jul 25
Zone 5a ~166 day growing season · Full guide →

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

Activity When Date Range
Direct Sow April 11 Apr 11 – May 2
Harvest September 12 Sep 12 – Sep 26
Fall Sowing July 30 Jul 30 – Aug 13
Zone 5b ~178 day growing season · Full guide →

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

Activity When Date Range
Direct Sow April 4 Apr 4 – Apr 25
Harvest September 5 Sep 5 – Sep 19
Fall Sowing August 4 Aug 4 – Aug 18
Zone 6a ~193 day growing season · Full guide →

Last frost: April 10 · First frost: October 20 · 193 day season

Activity When Date Range
Direct Sow March 27 Mar 27 – Apr 17
Harvest August 28 Aug 28 – Oct 9
Fall Sowing August 11 Aug 11 – Aug 25
Zone 6b ~205 day growing season · Full guide →

Last frost: April 3 · First frost: October 25 · 205 day season

Activity When Date Range
Direct Sow March 20 Mar 20 – Apr 10
Harvest August 21 Aug 21 – Oct 2
Fall Sowing August 16 Aug 16 – Aug 30
Zone 8a ~255 day growing season · Full guide →

Last frost: March 8 · First frost: November 18 · 255 day season

Activity When Date Range
Direct Sow February 22 Feb 22 – Mar 15
Harvest July 26 Jul 26 – Sep 27
Fall Sowing September 9 Sep 9 – Sep 23

Growing Tips for Utah

Plant tubers 3 inches deep in spring. Mark the location well as plants die back. Harvest in late fall after frost. Leave some tubers in ground for next year. Very labor-intensive to harvest.

Frequently Asked Questions

When should I plant Crosne in Utah?

Planting dates for Crosne in Utah depend on your USDA zone. Utah spans zones 4b, 5a, 5b, 6a, 6b, 8a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Utah for planting?

Utah contains USDA hardiness zones 4b, 5a, 5b, 6a, 6b, 8a. 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.