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You can plant mint next to lavender, but you really shouldn’t, because these two herbs have completely different growing needs that will likely cause one of them to suffer.
If you’ve been wondering can you plant mint next to lavender without problems, the short answer is yes, they won’t kill each other instantly, but the long-term results are usually disappointing for your lavender.
Mint is a vigorous, moisture-loving spreader, while lavender craves dry, poor, and sandy soil, so planting them together puts you in a constant battle to keep both happy.
In this post, we’ll dig into why you can plant mint next to lavender physically but shouldn’t, what happens when you do, and what better companion plants you can choose instead.
Let’s get into the dirt.
Why Planting Mint Next To Lavender Is A Bad Idea
You can plant mint next to lavender, but the reason it’s a bad idea comes down to three big differences in how each plant lives.
1. Water Needs Are Totally Opposite
Mint thrives in consistently moist soil, and it will wilt quickly if the ground dries out even for a day.
Lavender, on the other hand, is a Mediterranean native that hates wet feet and will develop root rot if the soil stays damp for long periods.
If you plant mint next to lavender and water enough to keep the mint happy, you’re basically drowning your lavender’s roots.
If you water less to protect the lavender, your mint will turn brown and crispy at the edges.
This constant tug-of-war is why so many gardeners say you can plant mint next to lavender only if you’re ready to lose one of them.
2. Mint Will Outcompete And Choke Lavender
Mint is one of the most aggressive growers in the herb garden, sending out underground runners that can travel several feet in a single season.
Lavender grows slowly and prefers to stay in a neat, compact clump, so it simply can’t keep up with mint’s rapid expansion.
When you plant mint next to lavender, the mint’s roots will invade the lavender’s space, stealing water and nutrients before the lavender can access them.
Over time, the lavender will become stunted, leggy, and more susceptible to disease simply because it’s being smothered by its neighbor.
So while you can plant mint next to lavender in the ground, don’t be surprised when the mint takes over the entire bed by midsummer.
3. Soil Preferences Clash Completely
Lavender needs alkaline, gritty, and well-draining soil with very little organic matter to thrive.
Mint, however, loves rich, loamy, and slightly acidic soil that holds onto moisture and nutrients.
If you try to plant mint next to lavender, you’ll struggle to create a single soil condition that satisfies both at the same time.
Amending your soil for mint means adding compost and peat moss, which will make lavender’s roots too wet and heavy.
Amending for lavender means adding sand and gravel, which will leave mint starving and thirsty.
Because you can plant mint next to lavender but can’t give them separate soil zones, at least one of them will always be growing in the wrong conditions.
What Happens If You Plant Mint Next To Lavender Anyway
If you decide to go ahead and plant mint next to lavender despite the warnings, here’s what you can expect to see happen over the next few months.
Lavender Will Likely Decline First
The lavender is almost always the first casualty when you plant mint next to lavender in the same bed.
Because lavender is slow-growing and sensitive to excess moisture, it will start showing yellowing leaves and woody stems within a few weeks of being overwatered for the mint’s sake.
The mint’s roots will also release chemicals that can inhibit the lavender’s growth, making it even weaker over time.
Eventually, the lavender will produce fewer flowers, lose its aromatic oils, and may even die back completely.
Mint Will Become A Weed
While the lavender suffers, the mint will absolutely thrive, spreading out in every direction and popping up in unexpected places.
If you plant mint next to lavender in an open garden bed, you’ll be pulling mint runners out of the soil for years to come.
Mint has no natural predators, and it will happily crowd out not just the lavender but any other herbs you try to grow nearby.
So what starts as a simple question of can you plant mint next to lavender quickly turns into a full-blown garden invasion.
Best Ways To Grow Mint And Lavender Together
If you love both herbs and really want to have mint and lavender in your garden, there are smarter ways to do it without them fighting each other.
Use Separate Containers
The easiest solution is to plant mint next to lavender only when they’re in separate pots placed side by side.
Keep the mint in a container with drainage holes and rich potting soil, and water it whenever the top inch feels dry.
Keep the lavender in its own pot with sandy, gritty mix, and only water it when the soil is completely dry.
You can place these pots right next to each other on a sunny patio, but their roots never touch and their watering schedules never conflict.
Bury A Mint Barrier In The Ground
If you insist on planting both in the ground, you can plant mint next to lavender only if you install a solid barrier around the mint first.
Use a large plastic pot with the bottom cut out, or bury a metal or plastic edging ring at least 12 inches deep into the soil.
Plant the mint inside this sunken container, and the lavender just outside it, so the mint’s runners can’t escape into the lavender’s root zone.
This method lets you grow them in the same bed while keeping their roots and moisture needs separated.
Grow Lavender In A Raised Bed
Another great trick is to plant mint next to lavender by putting the lavender in a raised bed or mound that drains quickly.
The mint can grow at the base or in a separate lower area where the soil stays richer and wetter.
Raised beds naturally provide the dry, gritty conditions lavender loves while keeping the mint from being overwatered.
Just make sure the mint is far enough away from the raised bed that its runners don’t climb up into the lavender’s dry soil.
Better Companion Plants For Lavender And Mint
Instead of forcing these two together, try pairing each one with plants that share its preferences and bring out its best qualities.
Plants That Love Lavender’s Dry Soil
Lavender grows beautifully alongside rosemary, thyme, sage, and oregano because they all want the same lean, sandy conditions.
You can also plant lavender next to ornamental grasses, echinacea, and sedum for a pollinator-friendly garden that handles drought well.
These companions won’t compete with lavender for water, and they’ll all flourish in full sun with minimal irrigation.
Plants That Love Mint’s Moist Soil
Mint is happier next to other moisture-loving herbs like lemon balm, parsley, and chervil.
You can also plant mint alongside leafy greens like lettuce or spinach, which enjoy the same rich, damp soil and partial shade.
Just remember that mint will still try to spread even among these friends, so keep it contained no matter what you plant it with.
So, Can You Plant Mint Next To Lavender?
You can plant mint next to lavender, but you shouldn’t if you want both plants to stay healthy and productive.
The water needs, soil preferences, and growth habits of mint and lavender are simply too different to share the same space happily.
If you plant mint next to lavender in the ground without barriers, you’ll likely lose the lavender to overwatering and root competition.
The good news is you can grow both herbs successfully using containers, barriers, or raised beds that keep their needs separate.
So next time you’re wondering can you plant mint next to lavender, remember that it’s possible but rarely wise, and your garden will thank you for giving each herb its own special spot.
Happy gardening.