How to grow sweet marjoram
Origanum majorana
Get your exact dates
The windows below are relative to your frost dates. Enter your ZIP for the calendar dates.
Open the planting calendarWhen to plant sweet marjoram
Start seeds indoors10 weeks before your last spring frost to 8 weeks before your last spring frost
Direct sowat your last spring frost
Growing conditions
- Spacing
- 12 to 18 in apart
- Sun
- Full sun
Common problems
- leafhoppers
- woody growth
- frost sensitivity
Sweet Marjoram by hardiness zone
Planting dates for a typical location in each zone:
Sources
Last updated 2026-06-13.