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When to Plant Crosne in New Brunswick

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.

New Brunswick spans USDA hardiness zones 5a, 5b, 6a (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.

Crosne Planting Calendar for New Brunswick

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

Growing Tips for New Brunswick

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 New Brunswick?

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

What zone is New Brunswick for planting?

New Brunswick contains USDA hardiness zones 5a, 5b, 6a. 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.