Blog

When to Plant Marigolds in Tennessee

Marigolds (Tagetes patula) are warm-season annuals beloved for their cheerful orange, yellow, and red blooms — and for their well-documented ability to repel pest nematodes in vegetable beds. Easy from seed, drought-tolerant once established, and bloom from early summer until the first hard frost.

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 Marigolds planting dates based on your local frost dates.

Marigolds 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
Start Indoors February 11 Feb 11 – Feb 25
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 25 Mar 25 – Apr 15
Bloom May 20 May 20 – Aug 26
Zone 7b ~235 day growing season · Full guide →

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

Activity When Date Range
Start Indoors February 4 Feb 4 – Feb 18
Transplant Outdoors March 18 Mar 18 – Apr 1
Direct Sow March 18 Mar 18 – Apr 8
Bloom May 13 May 13 – Sep 2
Zone 8a ~255 day growing season · Full guide →

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

Activity When Date Range
Start Indoors January 25 Jan 25 – Feb 8
Transplant Outdoors March 1 Mar 1 – Mar 15
Direct Sow March 1 Mar 1 – Mar 22
Bloom April 26 Apr 26 – Aug 30

Growing Tips for Tennessee

Direct-sow after last frost or start indoors 4-6 weeks earlier. Deadhead spent blooms to keep new flowers coming. French marigolds (T. patula) are the most reliable nematode repellents — plant a band around vegetable beds. Tolerate poor soil but bloom best with monthly compost.

Frequently Asked Questions

When should I plant Marigolds in Tennessee?

Planting dates for Marigolds 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: July 2026.