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When to Plant Sunchoke in Tennessee

Sunchokes (Jerusalem artichokes) are a native sunflower relative grown for their knobby, nutty-flavored tubers. They are extremely productive and nearly impossible to eradicate.

Tennessee spans USDA hardiness zones 7a, 7b, 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 Sunchoke planting dates based on your local frost dates.

Sunchoke Planting Calendar for Tennessee

Zone 7a ~221 day growing season · Full guide →

Last frost: March 25 · First frost: November 1 · 221 day season

Activity When Date Range
Transplant Outdoors April 8 Apr 8 – Apr 22
Harvest July 29 Jul 29 – Sep 23
Zone 7b ~235 day growing season · Full guide →

Last frost: March 18 · First frost: November 8 · 235 day season

Activity When Date Range
Transplant Outdoors April 1 Apr 1 – Apr 15
Harvest July 22 Jul 22 – Sep 16
Zone 8a ~255 day growing season · Full guide →

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

Activity When Date Range
Transplant Outdoors March 22 Mar 22 – Apr 5
Harvest July 12 Jul 12 – Sep 6

Growing Tips for Tennessee

Plant tubers 4 inches deep in early spring. Contain plants with barriers as they spread aggressively. Harvest after frost or leave in ground and dig as needed through winter.

Frequently Asked Questions

When should I plant Sunchoke in Tennessee?

Planting dates for Sunchoke in Tennessee depend on your USDA zone. Tennessee spans zones 7a, 7b, 8a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Tennessee for planting?

Tennessee contains USDA hardiness zones 7a, 7b, 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: May 2026.