What to Grow with Rosemary: Best Companion Plants

By Emma Johnson · January 24, 2026

What to Grow with Rosemary: Best Companion Plants and Tips

Rosemary thrives when planted alongside herbs like thyme, oregano, sage, and lavender, as well as vegetables such as beans, carrots, and spinach. These companions share similar sun and soil requirements, deter pests, and enhance growth through natural synergy. Avoid moist-loving plants like basil or mint, which have conflicting water needs.

Why Companion Planting with Rosemary Matters

Companion planting maximizes garden health, improves yield, and reduces reliance on chemical pesticides. Rosemary, a drought-tolerant Mediterranean herb, emits strong aromatic oils that repel pests like carrot flies, cabbage moths, and slugs. When paired correctly, it supports neighboring plants while benefiting from symbiotic relationships.

Key Benefits of Growing Plants with Rosemary

Natural pest repellent properties protect nearby crops
Shared preference for full sun and well-drained soil simplifies care
Improved pollination due to attractive flowering varieties like lavender
Efficient use of space in herb gardens or containers
Enhanced flavor development in some companion herbs

Best Herbs to Grow with Rosemary

Herbs native to the Mediterranean region are ideal companions for rosemary because they favor dry, rocky soils and plenty of sunlight.

Top Herb Companions

Thyme: Low-growing, prevents weeds, shares water needs
Oregano: Spreads quickly, deters pests, tolerates similar conditions
Sage: Mutual pest resistance, especially against cabbage moths
Lavender: Attracts pollinators, enhances garden aesthetics
Marjoram: Softens microclimate, complements rosemary in cooking

Vegetables That Benefit from Rosemary

Rosemary’s insect-repelling qualities make it an excellent neighbor for certain vegetables, particularly those vulnerable to common garden pests.

Recommended Vegetable Pairings

Beans: Rosemary deters bean beetles; avoid overcrowding
Carrots: Repels carrot flies naturally
Spinach: Benefits from reduced aphid pressure
Onions & Garlic: Share fungal disease resistance and dry soil preference

Plant	Water Needs	Sun Exposure	pH Range	Companion Score (1-10)
Rosemary	Low	Full Sun (6–8 hrs)	6.0–7.5	10
Thyme	Low	Full Sun	6.0–7.0	9
Oregano	Low-Moderate	Full Sun	6.0–7.0	9
Lavender	Low	Full Sun	6.5–7.5	9
Sage	Low	Full Sun	6.0–7.0	9
Basil	High	Full to Partial Sun	5.5–6.5	3
Mint	High	Partial to Full Sun	6.0–7.0	2
Cucumbers	High	Full Sun	6.0–7.0	3

Table data source:1, 2, 3

The data shows that rosemary pairs best with low-water, full-sun herbs like thyme, oregano, and lavender, scoring above 9/10 in compatibility. In contrast, high-moisture plants like basil and mint score poorly due to conflicting cultural needs. Matching soil pH and light exposure is critical for long-term success.

Plants to Avoid Growing with Rosemary

Avoid pairing rosemary with species requiring frequent watering or shade, as this increases root rot risk and stunts growth.

Common Incompatible Plants

Basil: Requires moist soil and more humidity
Mint: Aggressive spreader and water-hungry
Cilantro: Prefers cooler, damper conditions
Cucumbers: High water demand creates unsuitable microclimate
Chervil: Shade-loving and delicate, unlike robust rosemary

Container Gardening Tips with Rosemary

When growing rosemary in pots, choose companions with identical drainage and watering needs. Terra cotta containers work best for regulating moisture.

Use a mix of 2 parts potting soil, 1 part perlite, 1 part coarse sand
Group rosemary with thyme, oregano, or small lavender plants
Ensure container has drainage holes to prevent root rot
Place in south-facing window or sunny patio (minimum 6 hours direct sun)

Frequently Asked Questions About What to Grow with Rosemary

Can I plant rosemary with basil?

No, rosemary and basil should not be planted together. Rosemary prefers dry soil and full sun, while basil requires consistent moisture and higher humidity. Planting them together risks overwatering rosemary or drying out basil, leading to poor growth or root rot.

Does rosemary keep pests away from other plants?

Yes, rosemary naturally repels several common garden pests including carrot flies, cabbage moths, slugs, and some aphids. Its strong aroma acts as a deterrent, making it an effective protective companion for carrots, beans, and brassicas when planted nearby.

Is rosemary good to grow with tomatoes?

Rosemary can be grown near tomatoes but with caution. While it may help repel some insects, both plants have different watering needs—tomatoes require more moisture. If grown in containers or with careful irrigation management, they can coexist, but in-ground pairing is less ideal.

What herbs grow best with rosemary in a pot?

Thyme, oregano, sage, and dwarf lavender are excellent choices for container planting with rosemary. They all prefer well-drained soil, minimal watering, and full sunlight, making them compatible in shared pots. Avoid mixing with moisture-loving herbs like parsley or mint.

Can rosemary be planted with succulents?

Yes, rosemary makes a great companion for many succulents. Both thrive in sandy, fast-draining soil and full sun. Sedum, echeveria, and sempervivum are suitable partners in decorative containers, provided there's enough airflow to prevent fungal issues.