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Companion plants for potatoes

We found 0 sourced companions and 1 pairing to use with caution. Each one links to its source and shows how strong the evidence is.

Growing potato

Solanum tuberosum

Sun
Full sun
Water
Consistent moisture during tuber development
Soil
Loose, well-drained soil
Spacing
Follow variety guidance and leave space for hilling
Growing guide source

Good companions for potatoes

No sourced companion pairings for potato yet.

Use caution

  • Tomato

    Extension guidance

    Tomatoes and potatoes share susceptibility to late blight.

    Both host Phytophthora infestans. Infected tubers or transplants and windblown spores can introduce disease. This is shared disease risk, not chemical incompatibility.

    Spacing: Preserve airflow. No safe separation distance is established; adjacent rows do not prevent airborne infection.

    Pests: Use healthy planting material and monitor both crops; rotation alone does not prevent airborne late blight.

    University of Minnesota · Late blight

Other crops

Check pairings in your own beds

Smart Garden Planner flags companions and conflicts as you add potatoes 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.