Oregano plant profile
Origanum vulgare var. hirtum
A perennial herb for full sun.
Last updated .
When to plant
When to plant Oregano
Set out cutting-grown plants in spring once the danger of hard frost has passed. True oregano is only marginally hardy in zone 5, so in colder areas treat tender types as annuals or bring them indoors before winter.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Oregano in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Lifecycle
- Perennial
Common problems
Watch for these
Also watch for: winter kill, poor drainage.
Next steps
Continue with Oregano
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Oregano (Herb Gardening)
University of Illinois Extension. Supports general reference. Checked 2026-06-11.
- Toxic and Non-Toxic Plants: Oregano (Origanum vulgare hirtum) entry
ASPCA Animal Poison Control Center. Supports pet-safety verdicts for dogs and cats. Checked 2026-07-18.