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Companion plants for radishes

We found 1 sourced companion and 1 pairing to use with caution. Each one links to its source and shows how strong the evidence is.

Growing garden radish

Raphanus sativus

Sun
Sunny cool-season site
Water
Adequate moisture
Soil
Loose, well-drained soil, pH 6–7
Spacing
Use small garden varieties and their final spacing; not a daikon recommendation
Growing guide source

Good companions for radishes

  • Carrot

    Extension guidance

    Carrots and quick-harvest garden radishes can share space.

    University of Minnesota describes side-by-side carrots and radishes as a space-saving practice. Harvest small garden radishes early; do not extend this to large daikon or infer pest suppression.

    Spacing: Preserve final root spacing and remove radishes before crowding; do not double full-density crops.

    Pests: The reference supports space use, not demonstrated carrot-pest protection.

    University of Minnesota · Companion planting

Use caution

  • Cabbage

    Extension guidance

    Cabbage and radish share flea beetles.

    Both are in the cabbage family, which flea beetles feed on. Young transplants and seedlings are most vulnerable.

    Spacing: Keep normal spacing; nearness does not by itself cause damage.

    Pests: Check seedlings often; row covers can exclude beetles.

    University of Minnesota · Flea beetles

Other crops

Check pairings in your own beds

Smart Garden Planner flags companions and conflicts as you add radishes and other plants to a garden bed.

Start freeSee planting dates

Reference version 2026-11-03. Educational information; local conditions vary — check your local extension office.