Sweet potato plant

Sweet potato growing profile.

Sweet potato Companion Plants

What may help, what can compete, and where the evidence is still uncertain.

Sweet potato Ipomoea batatas

Warm-season vegetable in the other. View plant profile →

Quick answer

No reviewed study supports a specific beneficial companion for sweet potato yet. 1 popular pairing has 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 →

1 records

No verified relationship (1)

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 Sweet potato and Bush beans affect each other (mutual)Summer · arrangement unspecifiedUnknown Review: August 15, 2026
Why?

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.

Example layout for sweet potato

No supported or conditional relationship specifies a layout. Space sweet potato at 30–45 cm and plan by light, water and timing.

Side view of sweet potato (30–30 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.

Sweet potato
Bush beans22 wk overlap
Overlap in weeks
Bush beans22 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 sweet potato on a 3-year cycle with other other crops (Okra, Asparagus, Rhubarb, Blueberry, Nasturtium). Shared risks: .

Crop rotation hub · Convolvulaceae family page

Physical and resource fit

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 sweet potato: 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

Evidence summary and sources

Reviewer: Garden Planner editorial team (pending independent horticultural review). Status counts on the Companions A–Z page are derived from these records. Corrections.

Related

Visual evidence on this page

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

Primary source types

  • Peer-reviewed journal articles
  • University extension publications
  • Government & research institute reports
  • Systematic reviews & meta-analyses

Last updated

August 24, 2026

Learn more about our approach