Mint can be a great addition to your herb garden, and it’s an interesting plant in its own right. Because it’s considered invasive, it can be a much more challenging companion plant to stay on top of.
Mint can grow from one small plant to a traveling vine if not controlled properly. So it’s important to know which plants do well with mint, and which you should keep it away from.
As long as they’re watered properly, Mint plants are happy in full sun, but they also do well in partial shade.
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Common Problems & Pests That Impact Mint
Before we decide what to plant with mint, let’s take a look at the common problems mint encounters.
Spider mites are a common problem with mint and other herbs. They start off small and hard to detect, but by the time you notice the problem they’ve created a whole ecosystem and your plant might not make it.
Spider mites are tiny little bugs that eat away at your plants. You’ll know you have them when the plant leaves start to look like they have cobwebs all over. The leaves might start showing signs of curling or turning brown, eventually the plant can die if these aren’t remedied.
While neem oil can help with a lot of pests, companion planting some mint nearby can also be effective.
Mint Rust and Powdery Mildew
Mint rust is a fungus that causes the your mint leaves to turn yellow. They’ll also fall off if left untreated, leaving bare stems and branches behind. You can control mint rust by watering and spraying your mint regularly with an anti-fungal spray like neem oil or grapefruit seed extract.
The Best Mint Companion Plants
While you might just be thinking about how to have a bountiful mint harvest, don’t forget that companion planting works both ways!
Beans, as well as bush beans are great mint companions. Mice, voles, and other garden rodents love snacking on beans and peas. The scent of mint helps deter some of these critters from getting a full meal in.
Cabbage & Broccoli
Cabbage and broccoli are great companions for mint. The peppermint scent can help keep away cabbage moths and flea beetles.
Cabbage moths are particularly tricky for brassicas like broccoli and cauliflower, as they lay eggs on the underside of the leaves which are hard for humans to see.
Before you know it, there are giant holes in your cabbage leaves and the plant is struggling to survive.
Similar to others on this list, the aromatic scent of mint can help keep pesky beetles and other insects that feed on Brussels Sprouts away.
Mint is considered a great companion plant for carrots because they help deter the carrot root fly. Carrot flies can be disastrous to your carrot crop, so having some mint close by can help.
Similar to cabbage and broccoli, interspersing some mint plants near cauliflower can help with flea beetles. The beetles will chew holes into your cauliflower heads which can shock the plant if not remedied.
Eggplant can suffer from aphid attacks, and mint does a great job at keeping them at bay. Growing mint between your eggplant and tomatoes can help both varieties.
Grow mint near kale to help keep beetles and other insects from each your beautiful green kale leaves.
The strong smell of mint can also help deter onion flies from wreaking havoc on your onion crop. While onions have a strong smell, the mint can counteract this and help keep flies away.
Peas and mint are good companion plants. The mint plant helps control pests and rodents because of its scent. If you can plant mint around your pea plants, you’ll be able to bring more fresh pods out from the garden.
You can plant mint with bell peppers, as it will help repel aphids. I found a ton of aphids on my pepper plants this past season, so I’ll definitely be adding some mint nearby to keep them at bay/
Tomatoes do well planted next to mint as the peppermint smell can help deter aphids. Aside from tomato hornworms, aphids can be one of the biggest pest issues your tomato crops might encounter.
If you let some mint go to seed and grow flowers, those mint flowers attracts beneficial insects like bees, parasitic wasps, and more.
What NOT to Plant Near Mint
While a lot of plants benefit from being planted nearby mint, other crops don’t play well together.
Mint likes water, like a LOT of water, and moist soil, so it will likely steal the water these others herbs would need to survive.
Since mint grows as an invasive plant, it can take over other garden plants (i.e. choke out other plants) if you’re not careful. Being a hardy perennial and vigorous grower also means mint is a great ground cover between taller plants in the garden.
If you’re growing herbs in pots or containers, keep mint in its separate pot. Just like older kids, they like to have their own room or else things get weird.
Companion planting mint can be a great way to help your other plants thrive, while also getting a more bountiful mint harvest out of your growing season.
Mint is an interesting plant in its own right. Because it’s considered invasive, it can be a much more challenging companion plant to stay on top of.
Mint is happy in full sun as long as it’s watered properly but often will prefer partial shade as well.