No reviewed study supports a specific beneficial companion for beet yet. 1 traditional pairing is listed separately because the review found no adequate evidence. 2 popular pairings have no verified relationship, which is not the same as safe or harmful.
Every status below has a direction, mechanism, context and source. "No verified relationship" means we looked and found nothing usable; the planner then evaluates spacing, light, water and timing normally. How we classify evidence →
Traditional claim (1)
Never a hard rule; may appear as an optional experiment.
Traditional claims are shown separately because repetition across charts is not evidence. They never change a planner score; treat them as optional experiments.
OnionAllium cepaTraditionalSpace and shade complement Beet and Onion affect each other (mutual)Spring–Fall · arrangement unspecifiedTier D Review: August 15, 2026Why?
Claim. Beets and onions are commonly listed as good neighbours. They have compatible needs and sizes; no benefit beyond ordinary compatibility has been demonstrated.
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. Compatible, not beneficial.
Evidence. Tier D: Traditional knowledge or structured community observations without a controlled comparison. (tradition).
Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record beet--onion--spatial_complement v1. Request a correction.
A realistic garden scene where beet grows beside a plant with a traditional or unknown relationship.Coexistence in a photograph is not evidence that the plants affect each other.
No verified relationship (2)
Zero score and an honest unknown state. Spacing, light, water and timing are evaluated normally.
No verified relationship: we did not find a source that establishes a benefit or harm for these pairs. This is not the same as "compatible".
Bush beansPhaseolus vulgarisNo verified relationshipOther Beet and Bush beans affect each other (mutual)Summer · arrangement unspecifiedUnknown Review: August 15, 2026Why?
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).
Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record beet--bush-beans--other v1. Request a correction.
KohlrabiBrassica oleracea var. gongylodesNo verified relationshipOther Beet and Kohlrabi affect each other (mutual)Spring–Fall · arrangement unspecifiedUnknown Review: August 15, 2026Why?
Claim. We did not find a source that establishes a benefit or harm between kohlrabi and beet.
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).
Reviewed August 15, 2026 by Garden Planner editorial team (pending independent horticultural review). Record kohlrabi--beet--other v1. Request a correction.
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Example layout for beet
No supported or conditional relationship specifies a layout. Space beet at 8–10 cm and plan by light, water and timing.
Side view of beet (30–45 cm) beside typical companions, showing canopy, support, shade and access.
When these companions overlap
Bed occupancy in Portland, Oregon (estimates). A relationship only matters while both plants are present.
JFMAMJJASOND
Beet
Onion24 wk overlap
Bush beans30 wk overlap
Kohlrabi16 wk overlap
Overlap in weeks
Onion
24 weeks
Bush beans
30 weeks
Kohlrabi
16 weeks
Crop rotation guidance
Rotation is about what occupied the bed in previous seasons and is calculated separately from the live companion relationships above.
Rotate beet on a 2-year cycle with other beet family crops (Swiss chard, Spinach). Shared risks: leaf miner (Pegomya), Cercospora leaf spot, downy mildew.
No significant light, water, pH or sprawl conflicts with the listed companions at recommended spacing.
Fit checks come from plant attributes and apply even when a pairing has a positive claim.
Community observations (anecdotal)
These reports come from gardeners and are not reviewed evidence. Results vary with soil, climate and practice. Community data never changes an evidence tier or a planner score.
Reports for beet: 0 (community submissions open in a later phase; drafts are stored only on your device).
Community-submitted photo area (moderated) with context fields: region, season, layout, varieties, outcome. Record an observation
Reviewer: Garden Planner editorial team (pending independent horticultural review). Status counts on the Companions A–Z page are derived from these records. Corrections.
Documentary and illustrated views distinguish identification, measured layout, seasonal overlap, mechanisms, coexistence examples, and community observations. Captions state what each visual can and cannot establish.
Our Methodology & Sources
We synthesize peer-reviewed research, university extension publications, and trusted horticulture resources. Our evidence levels help you understand how strong the science is behind the guidance.
Evidence tiers
Supported evidenceConsistent results from multiple robust studies
Traditional claimHistorical use reported, limited scientific support
Context dependentMixed or variable results across conditions
No verified relationshipNo reliable evidence identified
