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Companion Plants III

by M. Arjoca,


Cabbage, broccoli, turnip, Brussels sprout, cauliflower, grape vine


- the hyssop attracts bees, butterflies               

- the hyssop repels cabbage butterflies and moths, flea beetles                                                     

- the hyssop attracts hoverflies, wasps and other predatory insects                                         

- the hyssop stimulates the growth of grape vine

Chili peppers, mint


- the laurel tree protects the bean from moths and weevils                                                            

- the laurel tree repels the ladybugs              

- the laurel tree can be used as organic insecticide

Cauliflower, cabbage, Brussels sprout


- the lavender repels fleas and moths, whiteflies, codling moth, mice                                        

- the lavender attracts bees and other beneficial insects                                        

- the lavender attracts different predatory insects

Carrots, celery, chives, apple, apricot, pepper, cabbage, broccoli, cauliflower, collard, potatoes, tomatoes, eggplants

Bean, pea, parsley

- the leek repels cabbage pests, aphids, carrot fly etc

- the leek improves the growth of companion plants



- repels the mosquitoes                             

- attracts beneficial insects



(Lactuca sativa)

Bean, carrots, radishes, turnip, beet, strawberries, onion, garlic, cucumbers,   chervil, apple, dill, spinach

Celery, broccoli, parsley

- the chervil improves the growth of lettuce and keeps away the aphids                       


(Levisticum officinale)

Almost every plant,

bean, asparagus


- the lovage is one of the ideal companions for almost every plant

- the lovage improves the health of almost every neighbouring plant

- the lovage attracts beneficial insects              


(Origanum majorana)

Peppers, asparagus  


- the marjoram can be planted everywhere


(Cucumis melo)

Nasturtium, sunflower, corn, radishes


- the nasturtium repels squash beetle and cucumber beetle



Cabbage, turnip, broccoli, cauliflower, laurel tree, camomile, beet, eggplants

Asparagus, parsley

- the mint repels ants, cabbage pests, aphids, fleas, mice                                                       

- the mint attracts hoverflies, wasps and other predatory insects                                  

- the mint attracts earthworms                            

- the mint improves the health of tomatoes and cabbage

- the mint is an invasive plant


(Mirabilis jalapa)



- attracts Japanese beetle, but its leaves are poisonous for it






- monarda attracts bees

Morning glory




- the morning glory attracts hoverflies and other beneficial insects                              

- the morning glories can cover fences



Cucumbers, pumpkins, squashes, melons, bean, tomatoes, cabbage, cauliflower, broccoli, collard, turnip, apple, asparagus, radishes


- the nasturtium attracts predatory insects and repels whiteflies, cabbage pests, squash, cucumber and melons beetles, wooly aphids

- the nasturtiums attract aphids and caterpillars and can be used as trap crops                             

- is good to grow nasturtiums around the tomatoes, cabbage, cucumbers, under fruit trees              

- the nasturtium leaves, flowers and seeds are edible

- the nasturtium loves poor and not very wet soil



Collard, pumpkins, squashes, cabbage, beets
Tomatoes, peppers, eggplants, potatoes

- nepeta inhibits the growth of tomatoes, peppers, eggplants, potatoes, petunia, jasmine tobacco, tobacco

- nepeta repels leaf beetles, aphids, Japanese beetle, squash bugs, ants and weevils

- nepeta repels cabbage butterflies

- nepeta repels mice


(Allium cepa)

Carrots, tomatoes, peppers, broccoli, cabbage, cauliflower, collard, turnip, apricot, apple, potatoes, cucumbers, summer savory, amaranth, camomile, parsley, lettuce, beets, celery, eggplant

Bean, pea, asparagus

- the onion repels snails and slugs, carrot fly, cabbage butterflies

- the hot peppers release a substance which prevents roots rot and the diseases caused by fusarium

- the amaranth attracts predatory insects (soil bugs - Carabidae)


(Origanum vulgare)

Tomatoes, peppers, broccoli, cauliflower, basil


- the oregano gives shadow and keeps the soil moist for peppers                                            

- the oregano repels aphids                          

- the oregano repels cabbage pests and cucumber beetles



(Petroselinum crispum)

Asparagus, carrots, roses, tomatoes, peppers, corn, pea

Mint, lettuce, celery, garlic

- the parsley flowers attract predatory insects        

- the parsley improves the flavor of roses


(Pastinaca sativa)


Potatoes, carrots, celery

- parsnip flowers attract beneficial insects


(Pisum sativum)

Corn, carrots, celery, chicory, eggplants, parsley, potatoes, radishes, spinach, strawberries, radishes,   cucumbers, caraway, coriander

Onion, chives, garlic, leek, tomatoes

- the pea fixes nitrogen in soil


(Arachis hypogaea)

Corn, pumpkin, squashes, beet, carrots


- the peanuts fix nitrogen in soil



Roses, tomatoes, peppers, grape vine, corn, cabbage, cauliflower, broccoli, collard, turnip


- the pelargonium is a trap crop for roses and grape vine pests  

- the pelargonium repels cabbage pests, Japanese beetle

- the pelargonium repels the leaf hoppers which attack potatoes, beets and apples   

- the pelargonium attracts (trap crop) beet leafhoppers, carriers of curly top virus which is dangerous for tomatoes, peppers, eggplants   

- the pelargonium repels red spider mites



Onion, chives, garlic, leek, parsley, basil, pelargonium, marjoram, lovage, carrots, petunia, rosemary, cucumbers, eggplants, beet, squashes, pumpkin, laurel tree, calendula, pea, oregano

Fennel, turnip, apricot tree, broccoli, collard, cauliflower, cabbage, bean, catnip, walnut

- a fungus can be transmitted from peppers to the apricot tree

- the chili peppers release a substance which prevents roots rot and the diseases caused by fusarium  

- the chili pepper tea can be used as organic insecticide

- the petunias and pelargoiums attract (trap crops) beet leafhoppers, carriers of curly top virus which is dangerous for peppers




Pumpkin, squashes, cucumbers, peppers, asparagus, basil, potatoes, bean, tomatoes

Walnut, catnip

- the petunia is a trap plant   

- the petunia repels Japanese beetle, aphids, asparagus beetle   

- the petunia repels Mexican bean beetle

- the petunia repels squash, cucumber and melons beetles

- the petunias attract (trap crops) beet leafhoppers, carriers of curly top virus which is dangerous for tomatoes, peppers, eggplants  

- the walnut and catnip inhibit the growth of petunias                


(Solanum tuberosum)

Onion, chives, garlic, leek, horseradish, short bean, carrots, celery, corn, dead nettles, calendulas, tagetes, petunia, alyssum, comfrey, amaranth, coriander, flax, pea

Sunflower, tomatoes, cucumbers, asparagus, turnip, parsnip, pumpkins, fennel, broccoli, collard, cauliflower, turnip, cabbage, squash, potatoes, spinach, nepeta, walnut

- the potatoes repel the Mexican bean beetle (Epilachna varivestis)                                     

- the alyssum attracts beneficial insects                

- the horseradish improves the potatoes resistance to diseases 

- the tomatoes and the potatoes can transmit each other fungi (Phytophthora infestans, Alternaria solani) which cause the loss of the crop       

- the petunias repel the leafhoppers                 

- planting potatoes with comfrey leaves protects them from fungi which cause black scab                       

- the tannin from flax repels Colorado potato beetle

- the amaranth attracts predatory insects (ground bugs - Carabidae)                            

- the walnut, nepeta and the fennel inhibit the growth of potatoes



Corn, bean, buckwheat, catnip, radishes, peanuts, nasturtium, calendula, camomile, petunia


-the pumpkin attracts spiders, ground beetles       

- the nasturtiums repel squash, cucumber and melons beetles     

- the bean and peanuts fix nitrogen in soil  

- the buckwheat and catnip attract beneficial insects

- the radishes repel different bugs


(Portulaca oleracea)



- the leaves, stalks and seeds of purslane are edible

- the purslane presence indicates a fertile soil



(Raphanus sativus)

Bean, beets, chervil, cucumbers, lettuce, melon, nasturtium, parsnip, pea, spinach, pumpkins, squashes,

Cabbage, cauliflower, Brussels sprout, hyssop, grape vine

- the radishes protect the pumpkins and squashes from pests                

- the radishes repel cucumber beetles, carrot fly 

- the radishes attract leaf miners from spinach

- the chervil gives a better taste to radishes and improves their growth



Garlic, chives, pelargonium, parsley, strawflower


- the chives prevent the black spots on roses in the third year    

- the pelargoniums attract rose pests and can be used as trap crop     

- the parsley improves the smell of roses   

- the strawflowers attract different beneficial insects                          


(Rosmarinus officinalis)

Bean, sage, cabbage, broccoli, cauliflower, collard, turnip, carrots, peppers


- the rosemary repels cabbage and bean pests, carrot fly   

- the rosemary repels Mexican bean beetle              


(Salvia officinalis)

Rosemary, cabbage, broccoli, bean, cabbage

Basil, cucumbers

- the sage attracts bees

- the sage repels cabbage and bean pests, carrot fly, snails and slugs

Summer savory

(Satureja hortensis)

Bean, onion, cucumbers


- the summer savory repels Mexican bean beetle              

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More about companion plants here.