Blog

When to Plant Marjoram in Indiana

Sweet marjoram is a tender perennial herb with a delicate, sweet oregano-like flavor. It is a cornerstone of Mediterranean cooking and pairs well with meats and vegetables.

Indiana spans USDA hardiness zones 6a, 6b (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 Marjoram planting dates based on your local frost dates.

Marjoram Planting Calendar for Indiana

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 19 Jun 19 – 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 12 Jun 12 – Aug 21

Growing Tips for Indiana

Start seeds indoors 6-8 weeks before last frost. Harvest stems just as flower buds appear for peak flavor. In cold climates, grow as an annual or bring containers indoors.

Frequently Asked Questions

When should I plant Marjoram in Indiana?

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

What zone is Indiana for planting?

Indiana contains USDA hardiness zones 6a, 6b. 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.