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Repel Garden Pests With Companion Plants

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Marigolds and beans
Marigolds and beans make great companion plants in your garden – Image by KirrilyRobert

As I write this, it is August – the weather is hot, and most of the country is officially in a state of drought – but this won’t last forever. Take heart, and start planning your next garden, whether it is a fall garden, or next spring’s garden – the time to begin thinking about it is now. A little pre-planning for companion planting can mean the difference between a so-so harvest and lush, vibrant plantings that benefit each other.

Paired Planting to Prevent Pests

By placing some plants near each other they can actually help with pests – the dill plant repels the tomato moth, for example, and if your plants are being harassed by cabbage moths, plant them with rosemary, dill, mint, sage, oregano, or nasturtiums to repel these pesky pests. Check out this list for lots of plants you can pair together to get rid of the nasty bugs that hurt your precious veggies, while encouraging the good insects that pollinate and help them grow.

Companion Plants for Beans

Trying for a healthy bean harvest this year? There are a number of companion plants that will repel common bean-eating bugs.

  • Marigolds, potatoes, nasturtiums, petunias or rosemary repel the Mexican bean beetle.
  • Rhubarb repels the black fly.
  • Marigolds prevent nematodes.

Asparagus Companion Plants

If the asparagus beetle is making your life miserable, plant tomatoes, marigolds or parsley.

Cabbage

Are pests eating more of your cabbage than you are? Try these companion plantings!

  • Catnip repels aphids and the cabbage moth.
  • Onions repel rabbits.
  • Turnips or geraniums repel the cabbage worm.
  • Dill and clover repel aphids and worms.

Carrot Companion Plants

Carrots often are troubled with the carrot fly, so drive it away with plantings of leeks, onions, rosemary, sage or chives. In an interesting twist, the carrots drive away the onion fly, so planting the two together provides protection for both.

Corn Companion Plants

When you plant radishes with corn, the radishes will repel corn borers.

Cucumber Companion Plants

Cucumber plants can benefit from using the following companion plants:

  • Radishes, oregano or nasturtiums repel the cucumber beetles.
  • Garlic can repel aphids.
  • Dill repels aphids and spider mites.

Eggplant Companion Plants

Repel eggplant pests with these companion plants:

  • Green beans repel the Colorado potato beetle, which can decimate your eggplant.
  • Marigolds, thyme or tarragon repel nematodes, also a pesky eggplant pest.

Green Beans Companion Plants

Plant green beans with summer savory or potatoes to repel bean beetles.

Lettuce Companion Plants

Lettuce
Deter pests from your lettuce with companion plants – Image by ccharmon

Lettuce is a delicate plant, and susceptible to pests. These plants can help:

  • Mint or hyssop repel aphids and cabbage worm.
  • Sage repels slugs and cabbage moths.
  • Dill repels aphids and attracts hoverflies and predatory wasps, which can keep your lettuce even safer by attacking the bugs that prey on the leaves.
  • Chervil repels aphids and slugs.

Potatoes Companion Plants

Instead of dusting pesticides, try these companion plants for potatoes:

  • Beans, horseradish, nastutriums, catnip or coriander repel the Colorado potato beetle.
  • Marigolds repel nematodes.
  • Horseradish repels the potato beetle.

Pumpkin Companion Plants

For the best results growing pumpkins, try these companion plants:

  • Oregano repels squash bugs and beetles.
  • Radishes repel the flea beetle.
  • Dill repels spider mites and aphids.

Radish Companion Plants

Radishes are one of the earliest garden plants to mature in spring. Consider the spicy little bulbs for your fall garden and these plants as companion plantings:

  • Lettuce repels the earth fly.
  • Nasturtiums repel the flea beetle.

Rhubarb Companion Plants

Plant rhubarb with garlic or onions to repel aphids.

Squash Companion Plants

Squash, the most prolific garden plant, has a few enemies. Use these companion plants to combat them:

  • Nasturtiums and tansy repel squash bugs and flea beetles.
  • Borage repels worms.
  • Radishes repel flea beetles and squash borers.

Strawberry Companion Plants

Strawberry
Strawberry plants can benefit from companion plants – Image by aMichiganMom

Here are companion plants that can help your strawberry plants:

  • Borage attracts predatory wasps.
  • Thyme and onions repel many pests with their strong scents.

Sweet Potatoes Companion Plants

Use these companion plants to repel pests on sweet potatoes:

  • Summer savory, dill or thyme to repel weevils.
  • Marigolds repel nematodes.

Tomatoes Companion Plants

The perfect summer tomato is what we all want from our gardens. If you suffer from pests attacking your tomatoes before you get them to your table, consider these companion pests:

  • Chives, garlic, onions, leeks or shallots repel aphids and other pests.
  • Borage, marigolds, and petunias repel hornworms.
flowers
Many flowers are beneficial to vegetables as companion plants – Photo by greenfaerietree
  • Nasturtiums repel aphids and whiteflies.

Garden Diaries and Successful Planting

If you keep a garden diary of what pests plague each of your plants you can easily co-plant another plant to repel that pest in your next year’s garden. The Internet and your friendly agricultural extension agent can help you in identifying the pests. Once identified, you can attack the pest naturally and safely with companion plantings – and forget about dangerous chemical concoctions sprayed on your family’s food supply!

Companion planting is easy and very effective, so plan away for that next garden whether it is this fall or next spring.

If you’re interested in plantings that benefit one another’s growth and flavor, in addition to repelling pests, check out Garden Planner: Companion Gardening to start you out in understanding companion planting principles.

What is your favorite companion planting combination?

flowers
Many flowers are beneficial to vegetables as companion plants – Photo by greenfaerietree
Marigolds and beans
Marigolds and beans make great companion plants in your garden – Image by KirrilyRobert
repel pepper pests
Repel pepper pests with companion plants. – Image by bcnunnery
Strawberry
Strawberry plants can benefit from companion plants – Image by aMichiganMom
Companion planting
Marigolds and tomatoes are great companion plants for each other – Image by Ruth and Dave
Lettuce
Deter pests from your lettuce with companion plants – Image by ccharmon

Resources:

Companion Plants By Erin Huffstetler, About.com Guide

Seeds of Change: Companion Plantings, So Happy Together

Comments

  1. AvatarLeanne says

    Thanks for this article, it is so informative! I featured your post on my Pinterest Monday section of my blog @ planprepareandprovide.com. Thanks!

    Reply
  2. AvatarBlake Kirby says

    I’m taking notes! My garden is undergoing a makeover and I hope to incorporate companion planting to make everything grow nice.

    Reply
  3. AvatarStacystone says

    It is actually a great and helpful piece of information. I am satisfied that you simply shared this helpful information with us. Please stay us informed like this. Thanks for sharing.

    Reply

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Lauren Gamble
Lauren Gamble

I’m Lauren. Just a new mom trying to share her love for essential oils. Follow me on my journey to learning how I use EO’s daily in my home.

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