Basil has long been valued in gardens not just for its scent and flavour, but for the way it supports other crops when planted thoughtfully.
It’s a plant that performs best in warm conditions, with good airflow and consistent moisture, traits it shares with many other kitchen garden staples. But basil doesn’t just coexist with other plants; in the right combinations, it plays an active role in improving growth, deterring pests, and even enhancing flavour.
Understanding how basil interacts with its neighbors can make a noticeable difference in both plant health and harvest quality. Here’s what tends to work well, and what doesn’t!
Why Companion Planting Matters for Basil
Companion planting is the practice of growing certain plants together to provide mutual benefits.
Some plants protect each other from pests, while others improve soil health, attract pollinators, or offer shade.
When you plant basil near its beneficial companions, you’ll often see stronger plants, fewer pests, and better flavor. Companion planting can also help reduce reliance on chemical pesticides while creating a more biodiverse garden ecosystem.
9 Plants That Basil Loves Being Next To
1. Tomatoes: A Classic Duo
A familiar pairing for good reason. Basil often grows stronger and suffers less pest damage when tucked among tomato plants. Anecdotally, the tomatoes seem to benefit too! Why? It’s easy! It means fewer whiteflies and slightly improved fruit flavour have both been noted by experienced growers.
2. Marigolds: Natural Pest Fighters
When marigolds are planted near basil, aphids and whiteflies tend to keep their distance. That’s amazing, right?
The pungent scent of the flowers appears to confuse or repel several soft-bodied insects. Therefore, we can say without a doubt that they are excellent companions!
3. Peppers: Mutual Boost
Peppers and basil enjoy the same warm temperatures, full sun, and well-drained soil. Growing them together makes watering and feeding routines more efficient.
Plus, basil may help repel certain pests that target peppers, like spider mites and aphids, while also attracting beneficial pollinators that help the peppers produce fruit.
4. Oregano: Aromatic Allies
These herbs share a native climate and respond similarly to heat and light.
Grown together, they’re easy to manage and may even enhance one another’s aromatic qualities. Basil often develops stronger essential oils when grown near other Mediterranean herbs, oregano included.
5. Asparagus: Unexpected Friends
Basil and asparagus may not seem like an obvious pair, but they work well together.
Asparagus attracts beneficial insects like ladybirds and hoverflies—both of which help control aphids and other soft-bodied pests. In return, basil helps deter the asparagus beetle by masking the scent of the tender new shoots.
6. Garlic: Protection with Benefits
I love this duo, seriously, I really do!
Garlic releases sulfur compounds into the soil, which can help suppress fungal diseases, particularly useful for basil in damp or humid weather.
It also deters a range of soft-bodied pests like spider mites. The two also work well together culinarily, which makes harvesting convenient.
7. Chamomile: Flavor Enhancer
Chamomile is known for boosting the essential oils in herbs planted nearby, including basil. This means your basil may be more fragrant and flavorful when grown close to chamomile.
Plus, chamomile attracts pollinators and beneficial insects, helping support a healthy and diverse garden.
8. Lettuce: Friendly Neighbors
Lettuce benefits from being planted near basil, as its strong aroma can help deter common lettuce pests like aphids. Some gardeners also report that basil can subtly enhance the flavor of nearby lettuce.
Not to mention they look beautiful planted side by side, don’t you think?
9. Borage: Pollinator Magnet
Borage has star-shaped blue flowers that lots of beneficial insects love, including ladybugs, which are predators of aphids. It is also said to enhance the flavor of basil by enriching the soil.
Plants to Keep Away from Basil
While basil suits being planted with many crops, there are a few which should be kept separate.
These plants either compete for resources, have conflicting growing needs, or may even stunt each other’s development:
- Rue: This herb is known to release a chemical that inhibits basil’s growth and can affect its flavor.
- Sage: This drought-tolerant herb has different moisture needs from basil, which can lead to stress for both plants. Basil may also outcompete sage for sunlight and nutrients.
- Cucumbers: The strong scent of basil and other aromatic herbs can disrupt the flavour of cucumber. Basil may also cause reduced yields for cucumber plants.
Easy Tips for Successful Basil Companion Planting
Here are a few quick tips to get the most out of your basil and its companions:
Conclusion
Basil benefits from being planted near the right companions. Plants like tomatoes, marigolds, and chamomile can help improve its growth, reduce pests, and even enhance its flavor.
On the other hand, poor matches such as rue and sage can hold basil back. Choosing well-suited plant partners is a simple way to get more from your herb or vegetable garden.
I hope you enjoyed my article and all the knowledge I shared in it. If you have any questions, I’ll be happy to answer them, just comment below!
