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Basil and rosemary grow well together, but it takes a little planning to make it work in your garden.
These two beloved herbs can absolutely share a garden bed or a large container if you understand their different needs.
People often wonder if basil and rosemary grow well together because they’re both Mediterranean staples in the kitchen.
The short answer is yes, basil and rosemary grow well together when you give each one what it craves.
In this post, we’ll dig into why basil and rosemary grow well together, the best way to plant them side by side, and what to watch out for.
Let’s get those herbs thriving.
Why Basil and Rosemary Grow Well Together
Basil and rosemary grow well together because they complement each other in the garden more than you might think.
They both love full sun, which makes them natural partners for a sunny spot.
They also attract similar beneficial insects and pollinators, which boosts the health of your whole herb patch.
When you ask if basil and rosemary grow well together, the answer lies in their shared love for warmth and light.
Let’s break down the reasons these two herbs make good companions.
1. Both Herbs Thrive in Full Sun
Basil and rosemary grow well together because they both need at least six to eight hours of direct sunlight each day.
This shared requirement makes it easy to place them in the same sunny garden bed.
If you’re growing them in a pot, put it on a south-facing patio or windowsill where the sun pours in.
Since basil and rosemary grow well together in these conditions, you won’t have to compromise on light for either one.
They’ll both reward you with lush, flavorful leaves.
2. They Deter Pests for Each Other
Basil and rosemary grow well together because their strong scents confuse and repel common garden pests.
Rosemary’s woody aroma keeps away carrot flies and cabbage moths, while basil’s pungent leaves ward off thrips and mosquitoes.
By planting them side by side, you create a natural barrier that protects both herbs.
This is one of the biggest reasons gardeners swear that basil and rosemary grow well together.
You’ll spend less time fighting off bugs and more time enjoying your harvest.
3. They Share Similar Watering Preferences (Sort Of)
Basil and rosemary grow well together if you pay attention to their watering habits, though they aren’t identical.
Both prefer soil that drains quickly and doesn’t stay soggy, which is a crucial starting point.
Rosemary likes it on the drier side, so it’s happy with less frequent watering.
Basil needs a bit more moisture, but it also hates wet feet, so well-draining soil is the key.
You can make basil and rosemary grow well together by watering thoroughly but letting the top inch of soil dry out between drinks.
This middle ground keeps both herbs satisfied.
4. They Improve Each Other’s Flavor
Many gardeners notice that basil and rosemary grow well together and even enhance each other’s taste.
The theory is that companion planting stresses plants just enough to concentrate their essential oils.
When basil and rosemary grow well together, you might find your basil is more aromatic and your rosemary more pungent.
While science hasn’t fully proven this, the anecdotal evidence is strong in the gardening community.
Either way, you’re getting two amazing herbs that make your cooking sing.
Best Practices for Planting Basil and Rosemary Together
So you’ve decided basil and rosemary grow well together, but how do you actually make it happen?
It’s all about giving them the right environment and a little separation where it counts.
Here are the best practices to ensure basil and rosemary grow well together in your garden or container.
1. Use a Large Container or Spacious Garden Bed
Basil and rosemary grow well together when they have room to spread their roots.
Rosemary can become a woody shrub that grows two to four feet tall, so it needs space.
Basil is more compact but still wants breathing room for good airflow.
If you’re planting in a pot, choose one that’s at least 12 to 16 inches wide and deep.
This gives both herbs enough space, and basil and rosemary grow well together without competing for root space.
2. Create the Perfect Soil Mix
The right soil is non-negotiable for these two herbs to thrive together.
Basil and rosemary grow well together in sandy or loamy soil with a pH between 6.0 and 7.5.
Make sure your soil is light and drains like a champ, so add perlite or coarse sand if needed.
Rosemary especially hates heavy clay soil, and basil will sulk in waterlogged conditions.
A good rule of thumb is to mix in organic compost for nutrients but keep the texture gritty.
When basil and rosemary grow well together in this kind of soil, their roots stay healthy and disease-free.
3. Water Strategically to Keep Both Happy
Watering is where people often mess up, but it’s totally fixable.
Basil and rosemary grow well together if you water deeply but infrequently.
Check the soil with your finger, and only water when the top inch feels dry.
During hot summer months, you might water every couple of days, but always err on the side of caution with rosemary.
Overwatering rosemary is the fastest way to kill it, so let it dry out more than the basil.
If basil and rosemary grow well together, it means you’ve found that sweet spot between too wet and too dry.
4. Fertilize Lightly and Rarely
Basil and rosemary grow well together without heavy feeding, so don’t go overboard with fertilizer.
Rosemary is a low-maintenance herb that actually prefers poor to moderately fertile soil.
Too much fertilizer will make it grow soft and lose its pungent flavor.
Basil can handle a little more, but it also thrives on a light hand.
A balanced, slow-release fertilizer once in early spring is plenty.
When basil and rosemary grow well together, they don’t need much help from you in the nutrition department.
Common Mistakes When Growing Basil and Rosemary Together
Even though basil and rosemary grow well together, there are a few pitfalls you’ll want to avoid.
Knowing these mistakes will save you from frustration and keep both herbs alive.
Here’s what to watch out for.
1. Overwatering the Whole Pot
The biggest mistake is watering rosemary as often as you water basil.
Basil and rosemary grow well together only if you let the rosemary dry out more.
If you water too frequently, rosemary’s roots will rot, and the whole plant will decline.
To avoid this, water the basil side of the pot a little more, or plant them at opposite ends so you can water selectively.
2. Not Pruning Regularly
Both herbs need regular harvesting to stay bushy and productive.
Basil and rosemary grow well together when you pinch them back often, which encourages new growth.
If you let rosemary get too leggy, it won’t produce as many leaves, and basil will bolt to seed quickly.
So keep snipping those stems for your cooking, and your plants will thank you.
3. Bringing Rosemary Indoors for Winter Too Early
If you live in a cold climate, you might move your pot inside before frost hits.
But basil and rosemary grow well together indoors if you give them enough light.
Rosemary needs bright light or a grow lamp, while basil also needs sun to avoid getting leggy.
Don’t rush the move, but don’t wait too long either, as frost will kill basil instantly.
So, Does Basil and Rosemary Grow Well Together?
Basil and rosemary grow well together, and the answer is a resounding yes when you meet their needs.
These two herbs share a love for sun, well-draining soil, and a moderate watering schedule.
Basil and rosemary grow well together as companions that repel pests and potentially boost each other’s flavor.
You just need to give rosemary a little more dryness and space, while keeping basil slightly moister.
With the right pot, soil, and a watchful eye, basil and rosemary grow well together beautifully.
So go ahead and plant them side by side, and enjoy fresh herbs all season long.
Happy gardening.