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When to Plant Thyme in Kentucky

Thyme is a low-growing perennial herb with tiny, aromatic leaves and a warm, earthy flavor. It is one of the most versatile culinary and medicinal herbs.

Kentucky spans USDA hardiness zones 6a, 6b, 7a (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 Thyme planting dates based on your local frost dates.

Thyme Planting Calendar for Kentucky

Zone 6a ~193 day growing season · Full guide →

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

Activity When Date Range
Transplant Outdoors April 17 Apr 17 – May 1
Harvest June 26 Jun 26 – Aug 28
Zone 6b ~205 day growing season · Full guide →

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

Activity When Date Range
Transplant Outdoors April 10 Apr 10 – Apr 24
Harvest June 19 Jun 19 – Aug 21
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 1 Apr 1 – Apr 15
Harvest June 10 Jun 10 – Aug 12

Growing Tips for Kentucky

Start from seed, cuttings, or divisions. Plant in well-drained, lean soil. Prune lightly after flowering. Replace plants every 3-4 years when they become woody.

Frequently Asked Questions

When should I plant Thyme in Kentucky?

Planting dates for Thyme in Kentucky depend on your USDA zone. Kentucky spans zones 6a, 6b, 7a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Kentucky for planting?

Kentucky contains USDA hardiness zones 6a, 6b, 7a. 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.