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Companion Plants - Organic Pest Control

Companion plants are a great way to control garden insects organically, without harmful, nasty chemicals. Some companions also provide nitrogen or other organic nutrients.

Companion gardening is the practice of planting two different plants in close proximity to each other. One or both plants helps the other, giving off by products that the other plant needs. Those by products are chemicals and micro-nutrients.

Other beneficial plants provide some protection against insects and planting a few of them near a desired plant will keep the insects away.

Companion Plants

Try: With: For:
Borage Pumpkins, squash, cucumbers and a variety of plants.


Attracts bees and other pollinators.

Deters tomato hornworm

Basil Peppers, Tomatoes, Marigold Keeps aphids, whiteflies, hornworms and mosquitos away
Dill Cabbage / Cole family Attracts beneficial wasps that kill cabbageworms
Garlic Roses, tomatoes and a wide variety of flowers and vegetables. Wards off aphids and other insects and pests.

Deters Japanese Beetles.

It also makes a great organic insect repellent spray.

Mint Cabbage and Broccoli Deters Cabbage moths
Marigold A wide variety of flowers and vegetables. Wards off insects. They are also used in Organic Insect sprays.
Nasturtium Pumpkins, Squash, and a wide variety of vegetables. Deters Cucumber Beetles, Squash Bugs, Aphids, and more. And, they are edible!
Radishes Spinach and other leaf crops Attracts leaf miners away from spinach. The radishes will have leaf damage, but the root is unharmed.
Rosemary Beans, Broccoli, cabbage, Carrots Deters Bean Beetles, Cabbage moths and carrot flies
Sage Carrots Wards off Carrot Fly
Thyme Cabbage Deters cabbage worm
Zinnias Broccoli, Cabbage, Cauliflower Nectar attracts ladybugs to control cabbageworms. Try dwarf zinnias.

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