What to Grow with Basil: Top Companion Plants

By Priya Sharma · January 24, 2026

What to Grow with Basil: Best Companion Plants for Healthy Growth

Basil thrives when planted alongside vegetables like tomatoes, peppers, and oregano, which enhance flavor and deter pests. Avoid planting near rue or sage, which can inhibit growth. This guide explores the best companion plants for basil, backed by horticultural research and gardening expertise.

Why Companion Planting Matters for Basil

Companion planting improves garden health by naturally repelling pests, enhancing soil conditions, and boosting yields. Basil, known for its aromatic oils, acts as a natural insect repellent while benefiting from strategic plant pairings.

Top Benefits of Growing Basil with Companions

Repels thrips, aphids, and whiteflies with its strong scent
Enhances flavor in neighboring vegetables like tomatoes
Attracts pollinators such as bees and beneficial wasps
Maximizes space in container and raised bed gardens
Reduces reliance on chemical pesticides

Best Vegetables to Grow with Basil

Certain vegetables benefit significantly from being grown near basil. The synergy between these plants leads to improved taste and pest resistance.

Tomatoes

One of the most celebrated pairings in vegetable gardening. Basil repels tomato hornworms and enhances tomato flavor. Both thrive under similar sunlight and watering conditions.

Peppers (Bell and Chili)

Basil deters spider mites and aphids that commonly attack pepper plants. Its presence may also improve fruit set through increased pollinator activity.

Asparagus

Basil helps protect asparagus from asparagus beetles. Planting basil near asparagus beds is a proven organic pest control method.

Herbs That Pair Well with Basil

Not all herbs are compatible, but several share environmental preferences and mutual benefits with basil.

Oregano

Acts as a ground cover, retaining moisture and suppressing weeds. Both herbs prefer well-drained soil and full sun.

Thyme

Complements basil in scent and pest-repelling properties. Thyme’s low growth habit doesn’t compete for light.

Parsley

Shares similar water and shade needs. Parsley attracts hoverflies, whose larvae feed on aphids.

Plants to Avoid Growing Near Basil

Some plants release compounds or attract pests that hinder basil’s development.

Rue: Inhibits basil growth due to allelopathic chemicals
Sage: Competes for resources and prefers drier conditions
Cucumbers: May suffer from shared pest attraction when planted too closely

Companion Planting Data: Yield and Pest Impact

Companion Plant	Effect on Basil Growth	Pest Reduction (%)	Yield Increase (vs. solo)
Tomato	Positive	40%	+25%
Pepper	Positive	35%	+20%
Oregano	Neutral/Positive	30%	+15%
Rue	Negative	-	-30%
Sage	Negative	-	-20%

Table data source:1, 2

Data shows that pairing basil with tomatoes results in a 25% higher yield and up to 40% fewer pests. Conversely, rue reduces basil productivity by 30%, confirming its status as a poor companion. These findings support strategic garden planning for optimal harvests.

Frequently Asked Questions About Growing Basil with Other Plants

Can I grow basil and mint together?

No, it's not recommended. Mint grows aggressively and competes for nutrients and space. It also prefers moister soil than basil, making it a poor companion despite both being aromatic herbs.

Does basil help repel mosquitoes?

Yes, basil emits essential oils like eugenol and linalool that naturally repel mosquitoes. Planting basil near patios or seating areas can reduce biting insects, especially when leaves are brushed or crushed.

Can you plant basil near cucumbers?

With caution. While not toxic, basil may attract pests like thrips that can spread to cucumbers. If planting nearby, ensure adequate spacing (at least 18 inches) and monitor for infestations.

Is basil a good companion for strawberries?

Limited evidence supports this pairing. Basil may deter some pests, but strawberries prefer slightly acidic soil, whereas basil favors neutral pH. Container separation is advised for best results.

How close should basil be planted to tomatoes?

Plant basil 12–18 inches away from tomato stems. This proximity allows basil to repel pests without competing for root space. Avoid burying tomato leaves near basil to reduce fungal disease risk.

Final Tips for Successful Basil Companion Planting

To maximize success, plant basil in full sun with well-draining soil and pair it with tomatoes, peppers, or oregano. Avoid rue and sage, and use observational gardening to adjust spacing and combinations yearly. With proper planning, companion planting boosts flavor, yield, and garden resilience naturally.