Oregano

Oregano

Origanum vulgare
Lamiaceae

Companion plants for oregano

The best companion plants for oregano are basil, sage, tomatoes, peppers and squash. None of the plants we track is a clear bad neighbour. Of the 9 plants we have data on, 5 are good neighbours, 0 are bad ones and 0 are contested. 1 of these verdicts rest on field trials or research papers; the rest come from traditional companion-planting charts.

Neighbours of oregano at a glance

Inner rings are backed by trials or papers, outer rings by charts only. Pick a plant to see its sources.

The interactive map needs JavaScript. Every plant on it is listed below with its evidence.

Good companion plants for oregano

Biggest harvest gain first, then the plants tested without a yield count. Each row links to the full evidence for the pair.

Recommended by garden charts, not tested yet

We found no trial or paper on these pairs with oregano. They may still work; nobody has measured it.

BasilSageTomatoPepperSquash & pumpkin

What not to plant with oregano

No plant in our data is a clear bad neighbour for oregano.

Relatives that share pests and diseases

PlantWhat trials found with oreganoTested byGarden charts
Mint No trial foundSame family (Lamiaceae): shares pests and diseases Not tested Not listed
Thyme No trial foundSame family (Lamiaceae): shares pests and diseases Not tested Not listed
Rosemary No trial foundSame family (Lamiaceae): shares pests and diseases Not tested Not listed

No measurable effect

PlantWhat trials found with oreganoTested byGarden charts
Celery No effect on pest-eating insects Field trial1 study Not listed

Sources

2 sources behind the verdicts on this page. 8 chart entries cite no source and are marked as tradition only.

Show all 2 sources
Crop Rotation in the Vegetable Garden (Steil · 2025 · Iowa State University Extension and Outreach, Yard and Garden)
Plan a bed with oregano

Same family (Lamiaceae): Basil, Mint, Thyme, Sage, Rosemary.

What grows well with your oregano?

Share what worked next to your oregano and what did not, or ask other growers a question. Reader notes are not checked by us and do not change the verdicts on this page.