French Beans Companion Plants
French beans are tender, warm-season crops that appreciate a sunny, sheltered position in much of the UK. Companion planting is a traditional way of mixing crops, not a guarantee of fewer pests or bigger harvests. Many gardeners pair beans with low or quick crops, while leaving enough space and airflow for picking and disease prevention.
Good companions for French Beans
| Plant | Why it helps |
|---|---|
| Carrots | Their fine foliage uses different space from bean leaves, and carrots can be sown before the beans fill out. |
| Beetroot | Beetroot remains relatively compact beneath wider bean rows, making practical use of a mixed bed. |
| Radish | Fast radishes can mark bean rows and be lifted before the beans need their full growing room. |
| Courgette | Both enjoy warmth and rich organic matter, though generous spacing helps prevent either crop shading the other. |
| Sweetcorn | Tall sweetcorn is traditionally combined with beans, but use separate supports if plants are heavily laden. |
| Nasturtiums | Their flowers may draw pollinating insects and other garden wildlife; keep them from smothering young bean plants. |
| Pot marigolds | Pot marigolds offer open flowers for beneficial insects and fit neatly at sunny bed edges. |
Keep French Beans away from
| Plant | Why to separate them |
|---|---|
| Onions | Traditional advice keeps onions away from beans, though evidence is limited and good spacing matters more. |
| Garlic | Garlic is commonly listed as an unfriendly neighbour for beans in traditional companion-planting guides. |
| Leeks | Leeks compete for bed space later in the season and are often separated from beans by traditional practice. |
Tips
Sow after frost risk has passed and soil feels warm, or start under cover for an earlier planting. Give climbing types supports about 1.8 m high; dwarf types need less. Keep soil evenly moist during flowering and picking, harvest pods regularly, and avoid handling foliage when wet. Do not grow in the same spot yearly.
French Beans companion planting: frequently asked questions
What are good companion plants for french beans?
Good companions for french beans include Carrots, Beetroot, Radish, Courgette, Sweetcorn, Nasturtiums, Pot marigolds.
What should you not plant near french beans?
Keep french beans away from Onions, Garlic, Leeks.
How does companion planting help french beans?
French beans are tender, warm-season crops that appreciate a sunny, sheltered position in much of the UK.
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Companion planting is a traditional practice; results vary with your climate, soil and garden. Page updated 19 Sep 2026.