Rosemary growing profile.

Rosemary Companion Plants

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

Rosemary Salvia rosmarinus

Perennial herb in the mint family. View plant profile →

Add rosemary to plan Compare another plant

Quick answer

No reviewed study supports a specific beneficial companion for rosemary yet. 2 traditional pairings are listed separately because the review found no adequate evidence.

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 (2)

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.

Bush beansPhaseolus vulgarisTraditionalPest suppression · Mexican bean beetle Rosemary may affect Bush beansSummer · arrangement unspecifiedTier D Review: August 15, 2026

Why?

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.

CarrotDaucus carota subsp. sativusTraditionalPest suppression · carrot rust fly Rosemary may affect CarrotSpring–Fall · arrangement unspecifiedTier D Review: August 15, 2026

Why?

Claim. Rosemary is said to deter carrot rust fly. No controlled evidence found. Rosemary needs dry, lean soil unlike carrots.

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. Water and soil conflict.

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--carrot--pest_suppression v1. Request a correction.

**A realistic garden scene where rosemary grows beside a plant with a traditional or unknown relationship.**Coexistence in a photograph is not evidence that the plants affect each other.

Example layout for rosemary

No supported or conditional relationship specifies a layout. Space rosemary at 60–90 cm and plan by light, water and timing.

**Side view of rosemary (60–150 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.

Rosemary

Bush beans29 wk overlap

Carrot35 wk overlap

Overlap in weeks
Bush beans	29 weeks
Carrot	35 weeks

Crop rotation guidance

Rotation is about what occupied the bed in previous seasons and is calculated separately from the live companion relationships above.

Rosemary is a permanent planting and is not rotated.

Crop rotation hub · Lamiaceae family page

Physical and resource fit

Carrot: Rosemary would shade Carrot.

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 rosemary: 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

Companion planting in home gardens — University of Minnesota Extension, 2023 (guidance)

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

Rosemary Companion Plants

Quick answer

Traditional claim (2)

No records match those filters

Example layout for rosemary

When these companions overlap

Crop rotation guidance

Physical and resource fit

Community observations (anecdotal)

Evidence summary and sources

Related

Visual evidence on this page

Our Methodology & Sources