Cabbage

Cabbage

Brassica oleracea var. capitata
Brassicaceae
Turnip

Turnip

Brassica rapa subsp. rapa
Brassicaceae

Can you plant cabbage and turnips together?

It depends. The sources disagree about cabbage and turnips. Turnips lured pests away from cabbage in a field trial, but both are in the Brassicaceae family, so they share pests and diseases.

Why it depends

What to plant with cabbage and turnips

Good neighbours of both, best tested first.

How each one was tested, with the evidence

What to keep away from cabbage and turnips

Nothing in our data is a bad neighbour of cabbage or turnips.

The evidence in detail

For readers who want to dig in: every chart entry, study and yield trial behind the answer above, with the numbers.

Tradition, research and yield trials

Same family, shared pests and diseases. Both in Brassicaceae: often susceptible to the same diseases and insects. Source: Iowa State University Extension and Outreach, Yard and Garden

Tradition

No chart mentions this pair.

Research

Mixed

2 papers found: 1 positive, 0 negative, 1 mixed.

trap crop x2

auto-classified not reviewed by a person

Yield trial

No intercropping yield trial.

It's complicated

What happens above and below ground

Each animation illustrates a mechanism a study reported for this pair. Pick a card to focus on it.

ABOVE GROUNDBELOW GROUNDsubsoilDECOYCabbageBrassicaceaeTurnipBrassicaceaeABOVE GROUNDBELOW GROUNDsubsoilDECOYCabbageBrassicaceaeTurnipBrassicaceae
Everything at once.

Companion plants for both cabbage and turnips

Plants that are good neighbours of each. Biggest harvest gain first; each cell links to the evidence for that pair.

PlantWith cabbageWith turnips
Basil12% more harvest from the same spaceField trial, 2 studies. Charts: not listed.Evidence for cabbage and basilBigger combined harvestField trial, 1 study. Charts: not listed.Evidence for turnips and basil
Pea11% more harvest from the same spaceField trial, 3 studies. Charts: not listed.Evidence for cabbage and peasBetter soil and nutrient uptakeField trial, 1 study. Charts: recommend.Evidence for turnips and peas
BroccoliLures pests awaySame family (Brassicaceae): shares pests and diseasesField trial, 3 studies. Charts: not listed.Evidence for cabbage and broccoliNo effect on pestsSame family (Brassicaceae): shares pests and diseasesField trial, 1 study. Charts: recommend.Evidence for turnips and broccoli

Harvest from the same space compares a bed with both crops against the same area split into single-crop beds, counting the harvest of both crops (the land equivalent ratio in yield trials).

The evidence, with sources

ResearchMixed2 entries
Same familyShares pests1 entry
  • Both in Brassicaceae: often susceptible to the same diseases and insects
    Crop Rotation in the Vegetable Garden (Steil · 2025 · Iowa State University Extension and Outreach, Yard and Garden)
Plan a bed with cabbage and turnips

All neighbours of cabbage and of turnip, or every pair at once in the companion planting chart.

Have you grown cabbage and turnips together?

Tell other gardeners what happened: spacing, pests, harvest, or ask a question. Reader notes are not checked by us and do not change the verdicts on this page.