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When to Plant Lavender in Connecticut

Lavender is a fragrant perennial herb with silvery foliage and purple flower spikes. It is prized for its essential oils, culinary uses, and ornamental beauty.

Connecticut 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 Lavender planting dates based on your local frost dates.

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

Lavender Planting Calendar for Connecticut

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 July 17 Jul 17 – Oct 30
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 July 10 Jul 10 – Oct 23
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 July 1 Jul 1 – Nov 11

Growing Tips for Connecticut

Plant in well-drained, sandy soil. Avoid heavy mulching around the crown. Prune after flowering but do not cut into old wood. Lavender resents wet winter conditions.

Frequently Asked Questions

When should I plant Lavender in Connecticut?

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

What zone is Connecticut for planting?

Connecticut 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.