Plants that help naturally deter/repel unwanted pests and disease. Using the organic attributes of plants CAN help with pest infestations. Companion/Allied planting has been used for centuries to help gardeners control pests and diseases, improve the health of plants and to produce more abundant crops.

Some things just go well together (like peas and carrots...Forrest Gump & Jenny) plants are no exception! Some plants may help each other by improving the soil with minerals, nutrients and as pest deterrents. They can also attract birds and other natural predators such as lady-bugs that will eat harmful insects. Companion plants can be used as borders, backdrops or you can plant them among your flowers or vegetables.
Bees and other pollinators are essential for healthy vegetable and flower gardening. With numbers rapidly declining it is more important than ever for us to ensure that they have a healthy environment to thrive in (without spraying if at all possible). There are many plants that can attract pollinators into your garden including: lavender, thyme, cornflower, hyssop, parsley, rosemary, sage, catmint, oregano and marjoram to name just a few.

PLANTS THAT HELP NATURALLY REPEL UNWANTED INSECTS
Repellent plants are natural deterrents for unwanted invaders to your garden. Garlic and onions are awesome examples of this.

Basil: Aphids, fruit fly, white fly, and house flies, mosquitoes
Hyssop: Cabbage moth
Chives: Airborne & soil borne insects, aphids, crab apple
Dill: White cabbage moth
Fennel: Fleas
Lavender: Flies, beetles, moths
Oregano: White cabbage moth
Pennyroyal: Flies, mosquitoes, fleas, ants, mice
Rosemary: Cabbage moth, bean beetle carrot fly snails, slugs , mosquitoes
Sage: Cabbage moth, carrot fly, flea beetle, slugs
Summer Savory: Bean beetles
Thyme: Cabbage worm
Catmint: Ants
Catnip: Beetles, ants
Coriander: Aphids
Citrosa: Mosquitoes
LemonGrass: Mosquitos, various insects
Garlic: Japanese beetle, aphids, red spider mite, black spot
Marigolds: various insects
Mint: White cabbage moth, caterpillars, aphids, flea beetles, mice
Nasturtium: Squash bugs, pumpkin beetles, aphids, white fly

The following list is a guide to HELP you bring a more natural and balanced companionship to your garden. This is NOT an exact science but it is worth trying to avoid spraying.

• Beans: Marigolds, Nasturtium, Rosemary and Savory.
  
• Beets: Garlic (improves growth helps Repel Pests in general).
  
• Cabbage Family Plants: (including broccoli, Brussels sprouts, cabbage, cauliflower, kale, kohlrabi) Chamomile, Catnip, Rosemary, Sage, Dill, Mint, Thyme and Nasturtium.
  
• Carrots: Chives, Rosemary and Sage.
  
• Corn: Marigolds.
  
• Cucumber: Marigolds, Nasturtium and Oregano (deters pests in general).
  
• Lettuces: Chives and garlic.
  
• Peas: Chives and Mint.
  
• Peppers: Basil, Parsley and Oregano.
  
• Squash: Marigold, Nasturtium,Oregano and Borage.
  
• Tomatoes: Basil repels flies and improves growth and flavor (besides being delicious with Mozzarella, Balsamic, Olive Oil and fresh Italian Bread). Bee Balm, Chives, Mint and Borage. Marigolds deter tomato worms and general garden pests.

The Iroquois and other North American Indians planted corn, beans, and squash together. This tradition of planting corn, beans and squash together became known as the Three Sisters.