Brussels sprouts

Brussels sprouts

Brassica oleracea var. gemmifera
Brassicaceae

Companion plants for Brussels sprouts

The best companion plants for Brussels sprouts are thyme and sage. Peppers are best kept away. Of the 12 plants we have data on, 2 are good neighbours, 1 is a bad one and 1 is contested. 4 of these verdicts rest on field trials or research papers; the rest come from traditional companion-planting charts.

Neighbours of Brussels sprouts 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 Brussels sprouts

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

PlantWhat trials found with Brussels sproutsTested byGarden charts
Thyme Fewer pests Greenhouse or pot trial2 studies Recommend
Sage Fewer pests Greenhouse or pot trial2 studies Recommend

What not to plant with Brussels sprouts

PlantWhat trials found with Brussels sproutsTested byGarden charts
Pepper No trial found Not tested Advise against

Relatives that share pests and diseases

PlantWhat trials found with Brussels sproutsTested byGarden charts
Cabbage No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed
Broccoli No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed
Cauliflower No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed
Kale No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed
Kohlrabi No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed
Turnip No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed
Radish No trial foundSame family (Brassicaceae): shares pests and diseases Not tested Not listed

Contested pairings

The sources disagree, or the charts say one thing and the trials another. Open a pair before you plant it.

PlantWhat trials found with Brussels sproutsTested byGarden charts
Basil Mixed results on harvest Field trial1 study Not listed

No measurable effect

PlantWhat trials found with Brussels sproutsTested byGarden charts
Tomato No effect on harvest Field trial1 study Not listed

Sources

5 sources behind the verdicts on this page. 1 chart entry cite no source and are marked as tradition only.

Show all 5 sources
Crop Rotation in the Vegetable Garden (Steil · 2025 · Iowa State University Extension and Outreach, Yard and Garden)
The effect of labiate herbs and white clover on Plutella xylostella oviposition (Dover · 1986 · Entomologia Experimentalis et Applicata)
The effect of labiate herbs and white clover on Plutella xylostella oviposition (Dover J. · 1986 · Entomologia Experimentalis et Applicata.)
The effects of non-host plants on the ecology of Brassica lepidoptera (Dover JW. · 1983 · University of Southampton)
Plan a bed with Brussels sprouts

Same family (Brassicaceae): Cabbage, Broccoli, Cauliflower, Kale, Kohlrabi, Turnip, Radish.

What grows well with your Brussels sprouts?

Share what worked next to your Brussels sprouts 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.