Cass County Extension
In the following listing, companions refer to those vegetables that, when planted together, are mutually beneficial. Allies are the herbs and flowers that provide protection or improve the growth of certain vegetables. Enemies are other vegetables, herbs and flowers that can cause detrimental effects when planted near certain vegetables.
This listing explains in detail the exact effects of the allies and enemies, and names the companions.
|Companions: Basil, parsley, tomato.||Ally: Pot marigold deters beetles.|
(to bush beans only), cabbage family, carrot, celery, chard, corn, cucumber, eggplant,
pea, potatoes, radish, strawberry.
Enemies: Garlic, onion and shallot stunt the growth of beans.
deters Mexican bean beetles.
Nasturtium and rosemary deter bean beetles.
Summer savory deters bean beetles, improves growth and flavor.
beans, cabbage family, lettuce, onion
Ally: Garlic improves growth and flavor.
|Enemies: Pole beans and beets stunt each other's growth.|
(Broccoli, Brussels sprouts, cabbage, cauliflower, Chinese cabbage, kale and kohlrabi)
celery, chard, cucumber, lettuce, onion, potato, spinach.
Allies: Chamomile and garlic improve growth and flavor.
|Nasturtium deters bugs, beetles,
Southernwood deters cabbage moth, improves growth and flavor.
Tansy deters cabbageworm and cutworm.
Thyme deters cabbageworm.
and tomato stunt each other's growth.
|Companions: Bean, lettuce, onion, pea, pepper, radish, tomato||Allies: Chives
improve growth and flavor.
Rosemary and sage deter carrot fly.
Enemy: Dill retards growth.
|Companions: Bean, cabbage family and tomato||Allies: Chives and
garlic deter aphids.
Nasturtium deters bugs and aphids.
|Companions: Bean, cabbage family and onion|
cucumber, melon, parsley, pea, potato, pumpkin, squash
Enemies: Tomatoes and corn are attacked by the same worm.
marigold and white geranium deter Japanese beetles.
Pigweed raises nutrients from the subsoil to where the corn can reach them.
cabbage family, corn, pea, radish, tomato
Enemy: Sage is generally injurious to cucumber.
Nasturtium deters aphids, beetles and bugs, improves growth and flavor.
Oregano deters pests in general.
Tansy deters ants, beetles, bugs, flying insects.
|Companions: Bean, pepper||Allies: Marigold deters nematodes.|
|Companions: Beet, cabbage family, carrot, onion, radish, strawberry||Allies: Chives and garlic deter aphids.|
|Companions: Corn, pumpkin, radish, squash||Allies: Marigold
Nasturtium deters bugs and beetles.
Oregano provides general pest protection
cabbage family, carrot, chard, lettuce, pepper, strawberry, tomato
Enemies: Onions stunt bean, pea.
and summer savory improve growth and flavor.
Pigweed raises nutrients from subsoil and makes them available to the onions.
Sow thistle improves growth and health.
|Companions: Asparagus, corn, tomato|
|Companions: Bean, carrot, corn, cucumber, radish, turnip||Allies: Chives
Mint improves health and flavor.
Enemies: Garlic and onion stunt the growth of peas.
|Companions: Carrot, eggplant, onion and tomato|
cabbage family, corn, eggplant, pea
Enemies: Tomatoes and potatoes are attacked by the same blight.
Horseradish, planted at the corners of the potato patch, provides general protection.
Marigold deters beetles.
|Companions: Corn, melon, squash||Allies: Marigold
Nasturtium deters bugs, beetles.
Oregano provides general pest protection.
|Companions: Bean, carrot, cucumber, lettuce, melon, pea||Allies: Chervil
and nasturtium improve growth and flavor.
|Companions: Cabbage family, strawberry|
Allies: Borage deters worms, improves growth and flavor.
|Marigold deters beetles.
Nasturtium deters squash bugs and beetles.
Oregano provides general pest protection.
lettuce, onion, spinach, thyme
strengthens resistance to insects and disease.
Thyme, as a border, deters worms.
Asparagus, carrot, celery, cucumber, onion, parsley, pepper
Enemies: Corn and tomato are attacked by the same worm.
repels flies and mosquitoes, improves growth and flavor.
Bee balm, chives and mint improve health and flavor.
Borage deters tomato worm, improves growth and flavor.
Dill, until mature, improves growth and health. Once mature, it stunts tomato growth.
Marigold deters nematodes.
Pot marigold deters tomato worm and general garden pests,
|Todd Weinmann, Extension Horticulturist & Master Gardener Coordinator|
|Phone: (701) 241-5707|
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