Bush beans Companion Plants

Claim. Fennel is said to stunt beans. Only laboratory evidence of inhibitory compounds exists; field effects are unproven.

Mechanism. Claimed by tradition; no harmful interaction demonstrated.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner does not separate these plants on this claim; it evaluates space, light, water and timing normally.

Limitations. Competition for light and water is the practical issue.

Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).

Sources. Duke 2015

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record fennel--bush-beans--allelopathy v1. Request a correction.

Claim. Marigolds are said to deter Mexican bean beetle. No controlled evidence found.

Mechanism. Proposed by tradition; not demonstrated in a controlled comparison.

Conditions. Planted together Both plants must be present at the same time.

Applies when. Optional experiment, not a guarantee.

Limitations. Tradition only.

Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record marigold--bush-beans--pest_suppression v1. Request a correction.

Claim. Nasturtiums are said to lure black bean aphids away from beans. Nasturtiums are a favoured aphid host, but no study shows reduced aphids on adjacent beans.

Mechanism. Proposed by tradition; not demonstrated in a controlled comparison.

Conditions. Planted together Both plants must be present at the same time.

Applies when. Optional experiment, not a guarantee.

Limitations. Aphids multiply on the nasturtium and can spread to beans unless removed.

Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record nasturtium--bush-beans--trap_crop v1. Request a correction.

Claim. Alliums and beans are traditionally listed as enemies, sometimes with the claim that onions inhibit bean growth. No controlled evidence was found in either direction.

Mechanism. Claimed by tradition; no harmful interaction demonstrated.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner does not separate these plants on this claim; it evaluates space, light, water and timing normally.

Limitations. No mechanism identified.

Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record onion--bush-beans--flavor_or_growth v1. Request a correction.

Claim. Beans are said to deter Colorado potato beetle, and potatoes to deter Mexican bean beetle. No controlled evidence was found for either direction.

Mechanism. Proposed by tradition; not demonstrated in a controlled comparison.

Conditions. Planted together Both plants must be present at the same time.

Applies when. Optional experiment, not a guarantee.

Limitations. Tradition only.

Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record bush-beans--potato--pest_suppression v1. Request a correction.

Claim. Rosemary is said to repel bean beetles. No controlled evidence found.

Mechanism. Proposed by tradition; not demonstrated in a controlled comparison.

Conditions. Planted together Both plants must be present at the same time.

Applies when. Optional experiment, not a guarantee.

Limitations. Tradition only.

Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record rosemary--bush-beans--pest_suppression v1. Request a correction.

Claim. We did not find a source that establishes a benefit or harm between arugula and bush beans.

Mechanism. None documented.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner evaluates spacing, light, water and timing normally.

Limitations. No relationship documented.

Evidence. Unknown: No source meeting the inclusion rules. (none).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record arugula--bush-beans--other v1. Request a correction.

Claim. We did not find a source that establishes a benefit or harm between beet and bush beans.

Mechanism. None documented.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner evaluates spacing, light, water and timing normally.

Limitations. Tradition says beets and pole beans conflict but bush beans are fine; no evidence for either claim.

Evidence. Unknown: No source meeting the inclusion rules. (none).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record beet--bush-beans--other v1. Request a correction.

Claim. We did not find a source that establishes a benefit or harm between cucumber and bush beans.

Mechanism. None documented.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner evaluates spacing, light, water and timing normally.

Limitations. Commonly listed as good companions; no evidence found either way.

Evidence. Unknown: No source meeting the inclusion rules. (none).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record cucumber--bush-beans--other v1. Request a correction.

Claim. We did not find a source that establishes a benefit or harm between eggplant and bush beans.

Mechanism. None documented.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner evaluates spacing, light, water and timing normally.

Limitations. Traditionally paired; no evidence found.

Evidence. Unknown: No source meeting the inclusion rules. (none).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record eggplant--bush-beans--other v1. Request a correction.

Claim. We did not find a source that establishes a benefit or harm between sweet potato and bush beans.

Mechanism. None documented.

Conditions. Planted together Both plants must be present at the same time.

Applies when. The planner evaluates spacing, light, water and timing normally.

Limitations. No relationship documented.

Evidence. Unknown: No source meeting the inclusion rules. (none).

Sources. University of Minnesota Extension 2023

Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record sweet-potato--bush-beans--other v1. Request a correction.