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The best things to grow with basil in a pot are tomatoes, peppers, oregano, and marigolds because these companions share similar sunlight and water needs, and they help each other thrive in a confined space.
If you’ve been wondering what to grow with basil in pot setups, you’re in the right place because choosing the right partners makes all the difference between a struggling container and a lush, productive mini-garden.
Basil is one of the most rewarding herbs for container gardening, but it doesn’t have to grow alone, and when you pick the right roommates, you’ll get better flavor, fewer pests, and more harvests from the same pot.
In this post, we’ll dig into what to grow with basil in pot planters, covering the absolute best companions, the science behind why they work, and a few plants you should definitely avoid.
Let’s get your container garden growing strong.
Why Basil Benefits from Companion Planting in a Pot
Growing basil in a pot already gives you great control over soil and watering, but adding the right companions takes things to the next level.
When you think about what to grow with basil in pot environments, you’re essentially building a tiny ecosystem where each plant supports the others.
Here’s why companion planting works so well in containers:
1. Shared Sun and Water Requirements
Basil loves full sun, needing about six to eight hours of direct light daily, and so do its best companions.
Plants that thrive in the same conditions allow you to water and feed them on the same schedule without stressing one or the other.
This makes managing your pot simple and keeps every plant happy.
When you match basil with moisture-loving, sun-worshipping friends, you avoid the headache of one plant wilting while another drowns.
2. Natural Pest Deterrence
Basil’s strong, aromatic oils are a natural repellent for many common garden pests like aphids, spider mites, and tomato hornworms.
When you plant basil alongside vulnerable crops, it acts like a fragrant shield that confuses pests and keeps them away.
This is a huge reason why so many gardeners ask what to grow with basil in pot gardens.
You get pest control without any chemicals, and your companion plants stay healthier as a result.
3. Improved Flavor and Growth
Certain plants release compounds into the soil or air that actually boost basil’s essential oil production.
This means your basil leaves can become even more aromatic and flavorful when grown near the right partners.
It’s a win-win because you get tastier herbs and more vigorous growth from both plants.
The Best Plants to Grow with Basil in a Pot
Now let’s get into the fun part, which is the specific plants that make fantastic companions in a container.
Here’s your go-to list for what to grow with basil in pot setups:
1. Tomatoes
Tomatoes and basil are the classic pairing, both in the kitchen and in the garden.
They share identical needs for sunshine, warmth, and consistent moisture, making them perfect pot partners.
Basil repels tomato hornworms and other pests, while tomatoes provide a bit of dappled shade that helps basil during the hottest part of the day.
Plus, many gardeners swear that basil actually enhances the flavor of homegrown tomatoes.
Just be sure to give both plants enough room in a larger pot, so they don’t compete for root space.
2. Peppers
Peppers, both sweet bell peppers and spicy chili varieties, are another top answer to what to grow with basil in pot containers.
They love the same hot, sunny conditions and well-draining soil that basil craves.
Basil’s strong scent helps mask the peppers’ presence from aphids and spider mites, which love to attack pepper plants.
In return, peppers grow upright and don’t crowd basil’s low-growing habit, so they coexist beautifully in the same container.
3. Oregano
Oregano is a low-growing, spreading herb that pairs wonderfully with basil because they’re both Mediterranean natives.
They thrive in the same kind of lean, well-drained soil and full sunlight.
Oregano acts as a living mulch, covering the soil surface and helping to retain moisture for basil’s roots.
Plus, oregano’s pungent aroma adds another layer of pest confusion, keeping your pot even safer from invaders.
4. Marigolds
Marigolds aren’t just pretty flowers, they’re hardworking companions that belong in your basil pot.
Their roots release a compound that repels nematodes and other soil-borne pests.
Bright marigold blooms attract beneficial insects like ladybugs and lacewings, which feast on aphids and other basil pests.
And they love full sun and moderate water, perfectly matching basil’s needs.
5. Chives
Chives are a great answer to what to grow with basil in pot if you want another edible herb in the mix.
They’re compact, don’t spread aggressively, and their mild onion scent deters aphids and Japanese beetles.
Chives also have a shallow root system, so they won’t compete heavily with basil’s deeper roots.
You’ll have two tasty herbs in one pot, which is perfect for small spaces.
Plants to Avoid Growing with Basil in a Pot
Just as important as knowing what to grow with basil in pot is knowing what not to plant alongside it.
Some plants are simply incompatible with basil’s needs or can actually harm its growth.
Here are a few to steer clear of:
1. Mint
Mint is an aggressive spreader that will quickly take over your entire pot and choke out basil.
It also prefers slightly different moisture levels, which can stress your basil.
Keep mint in its own container, far away from your basil pot.
2. Rue
Rue is a known garden antagonist that can inhibit the growth of basil and other herbs.
Its chemical secretions stunt basil growth, so it’s best to avoid this combination altogether.
3. Fennel
Fennel is allelopathic, meaning it releases chemicals that suppress the growth of nearby plants, including basil.
Even in a large pot, fennel will likely cause your basil to yellow and struggle.
Skip fennel when planning your container garden.
Tips for Success with Basil Companion Planting in Containers
Knowing what to grow with basil in pot is only half the battle, you also need to set up the container correctly for success.
Here are some practical tips to keep your basil buddies thriving:
1. Choose the Right Pot Size
Basil needs at least a 12-inch diameter pot to thrive, but adding companions means you’ll want something bigger.
Go for a 16 to 20-inch pot to give all roots enough room to spread and access nutrients.
Bigger pots also hold moisture longer, reducing the risk of drying out on hot days.
2. Use High-Quality Potting Mix
Don’t skimp on soil when you’re growing multiple plants together.
Use a premium potting mix enriched with compost to provide steady nutrition for all your plants.
Good drainage is crucial, so make sure your pot has holes and that the soil doesn’t stay soggy.
3. Water Consistently
Basil hates to dry out, and its companions feel the same way.
Check your pot daily, especially in summer, and water when the top inch of soil feels dry.
Consistent moisture keeps your basil and its companions lush and productive.
4. Feed Lightly and Regularly
Container plants need regular feeding because nutrients wash out with each watering.
Use a balanced, water-soluble fertilizer every two to three weeks, diluted to half strength.
This gives your basil and companion plants the steady nourishment they need without burning their roots.
So, What To Grow With Basil In Pot?
The best things to grow with basil in a pot are tomatoes, peppers, oregano, marigolds, and chives because they share basil’s love for sun and water while providing pest protection and flavor benefits.
What to grow with basil in pot boils down to choosing plants that don’t fight for resources and instead help each other flourish.
With these companions, your container will become a self-supporting mini-ecosystem that’s more productive and resilient than a lone basil plant.
So grab a big pot, pick a few of these friendly partners, and enjoy a thriving herb garden right on your patio or windowsill.
Happy planting.