List of companion plants 1

List of companion plantsThis is a list of companion plant relationships. Many more are in the list of beneficial weeds.The purpose of this list is to provide plants that assist in the growth of others, be it attracting beneficial insects,naturally regulating pests, repelling harmful insects, providing nutrients, part of a biological pest control program,and in some cases simply a shaded microclimate or climbing support.

Vegetables

Vegetables Common

namescientific

nameHelps Helped by Attracts Repels /

DistractsAvoid Comments

Alliums Allium fruit trees,nightshades(tomatoes,peppers,potatoes, etc),brassicas(cabbage,broccoli,kohlrabi, etc)carrots

carrots slugs,aphids,carrot fly,cabbageworms[1]

beans, peas,parsley

Alliums include onions, garlic,leeks, shallots, chives, and others

Asparagus Asparagusofficinalis

Tomatoes Aster Familyflowers, Dill,Coriander,Tomatoes,Parsley, Basil,Comfrey,Marigolds

Onion, Garlic,Potatoes

Marigolds will deter beetles.

Brassicas Brassica geraniums, dill,alliums (onions,shallots, garlic,etc), rosemary,nasturtium,borage

mustards,nightshades(tomatoes,peppers, etc)

Brassicas are a family of specieswhich include broccoli, cabbage,brussels sprouts, kohlrabi, andcauliflower.

Beans, Phaseolus Corn (seeThree Sisters),Spinach,lettuce,rosemary,summersavory, dill,carrots,brassicas,beets, radish,strawberry andcucumbers

Eggplant,Summer savory

Californiabeetles

Tomatoes,chili peppers,sunflowers,alliums(onions, garlic,etc), kales(cabbage,broccoli, etc)

Hosts nitrogen-fixing bacteria, agood fertilizer for some plants, toomuch for others

List of companion plants 2

Beets, Beta Vulgaris lettuce,kohlrabi,onions andbrassicas

Catnip, Garlic,Mint

Runner or polebeans

Good for adding minerals to thesoil through composting leaveswhich have up to 25%magnesium. Runner or pole beansand beets stunt each other'sgrowth.

Broccoli Brassicaoleracea

geraniums, dill,alliums,rosemary,nasturtium,borage

mustards,Tomatoes,peppers

Rosemary repels cabbage fly,geraniums trap cabbage worms,same general companion profile asall brassica (cabbage, kohlrabi,brussels sprouts, cauliflower, etc)

Cabbage Brassicaoleracea

geraniums, dill,alliums, rosemary

mustards,Tomatoes,peppersstrawberries,andpole/runnerbeans

Rosemary repels cabbage flies,geraniums trap cabbage worms,same general companion profile asall brassica (cabbage, kohlrabi,brussels sprouts, cauliflower, etc)

Carrots Daucus carota Tomatoes,Alliums(onions,chives, etc),lettuce

alliums (leeks,shallots, etc),rosemary,wormwood, sage,beans, flax

assassinbug,lacewing,parasiticwasp,yellowjacket andotherpredatorywasps

Dill, parsnip,radish

Tomatoes grow better withcarrots, but may stunt the carrots'growth. Beans (which are bad fortomatoes) provide the nitrogencarrots need more than some othervegetables. Aromatic companionplants repel carrot fly. Sage,rosemary, and radishes arerecommended by some ascompanion plants, but listed byothers as incompatible. Alliumsinter-planted with carrots confuseonion and carrot flies. For thebeneficial insect-attractingproperties of carrots to work, theyneed to be allowed to flower;Otherwise, use the wild carrot,Queen Anne's Lace, for the sameeffect. Flax produces an oil thatmay protect root vegetables likecarrots from some pests.

Celery, Apiumgraveolens

Cosmos, Daisies,Snapdragons

corn, Asterflowers, thesecan transmitthe asteryellowsdisease

List of companion plants 3

Corn /Maize

Zea mays beans Sunflowers,legumes (beans,peas, soybeansetc), peanuts,cucurbits(squash,cucumbers,melons, etc),amaranth, whitegeranium, lamb'squarters, morningglory, parsley,and potato

Tomato,Celery

Provides beans with a trellis, isprotected from predators anddryness by cucurbits, in the threesisters technique

Cucumber CucumisSativus

Nasturtiums,radishes,marigolds,sunflowers peas,beets, carrots,and Dill

Beneficialfor groundbeetles

Tomato, Sage

Commonname

scientificname

Helps Helped by Attracts Repels /Distracts

Avoid Comments

EggplantorAubergine

Solanummelongena

Beans, Peppers Marigolds,tarragon, mints

Marigolds will deter nematodes.

Leek Alliumampeloprasumv. porrum

Celery, appletrees

carrots cabbageworms,aphids,carrot fly,others

Legumes(beans, peas,etc)

Same companion traits as allalliums (onions, garlic, shallots,chives, etc)

Lettuce Lactuca sativa Radish, Kohlrabi,beans, carrots

celery,cabbage, cress,parsley

Mints (including hyssop, sage, andvarious "balms") repel slugs, abane of lettuce and cabbages

Mustard Brassicaceae,Sinapis alba

Cabbage,cauliflower,radish, brusselssprouts, turnips

variouspests

Same general companion profileas all brassica (cabbage, kohlrabi,brussels sprouts, cauliflower, etc)

Nightshades Solanaceae carrots, alliums,mints (basil,oregano, etc)

beans, blackwalnuts, corn,fennel, dill,brassica(broccoli,cabbage,cauliflower,etc)

Nightshade plants includetomatoes, tobacco, chili peppers(including bell peppers),potatoes, eggplant, and others

Commonname

scientificname

Helps Helped by Attracts Repels /Distracts

Avoid Comments

List of companion plants 4

Peppers Solanaceae,Capsicum

themselves,marjoram

tomatoes,geraniums,petunias

beans, kale(cabbage,brusselssprouts, etc)

Pepper plants like high humidity,which can be helped along byplanting with some kind ofdense-leaf or ground-covercompanion, like marjoram andbasil; they also need directsunlight, but their fruit can beharmed by it...pepper plants growntogether, or with tomatoes, canshelter the fruit from sunlight, andraises the humidity level.

Onion Allium cepa Tomatoes,Kales(broccoli,cabbage, etc)

Carrots aphids,carrot fly,other pests

beans, peas,parsley

Same companion traits as all otheralliums (chives, garlic, shallots,leeks, etc)

Potato Solanumtuberosum

Horseradish Sunflower,Tomato,Cucumber

Horseradish increases the diseaseresistance of potatoes

PumpkinSquash

Curcurbita spp corn, beans Buckwheat,catnip, tansy,radishes

Spiders,GroundBeetles

Flea Beetles are warded off byradishes, Curcurbita can be used inthe three sisters technique

Spinach Spinaciaoleracea

Peas, Beans The peas and beans providenatural shade for the spinach

Tomatoes Solanumlycopersicum

roses, peppers,asparagus

basil, oregano,parsley, carrots,marigold,Alliums, celery,Geraniums,Petunias,Nasturtium,Borage, any typeof onion orchives

asparagusbeetle

Black walnut,corn, fennel,peas, dill,potatoes,beetroot,brassicas(kohlrabi,cabbage, etc),rosemary

Black walnuts inhibit tomatogrowth, in fact they areallelopathic to all other nightshadeplants (chili pepper, potato,tobacco, petunia) as well, becauseit produces a chemical calledjuglone. Dill attracts tomato hornworm.

Herbs

Herbs Common

namescientific name Helps Helped by Attracts Repels / Distracts Avoid Comments

Basil Ocimumbasilicum

tomato,peppers,oregano,asparagus,petunias

chamomile,anise

butterflies asparagus beetle,mosquitoes and flies

common rue,sage,rosemary(basil willkill yourrosemary)

is said to maketomatoes tastebetter, chamomileand anise aresupposed to increasethe essential oils inmany herbs likebasil

List of companion plants 5

Borage Boragoofficinalis

Almosteverything,especiallystrawberry,cucurbits(cucumber,gourds),tomatoes

Predatoryinsects,honeybees

many pests Borage is the magicbullet of companionplants

Caraway Carum carvi Strawberries Parasitic wasps,parasitic flies

Chamomile Matricariarecutita

Basil, Wheat,Onion,Cabbage,Cucumber

Hoverflies,wasps

Growingnear herbswill increasetheir oilproduction.

Chervil Anthriscuscerefolium

Radish, lettuce,broccoli

aphids loves shade,fortunately it growswell withshade-tolerant foodplants; will makeradishes grown nearit taste spicier

Cilantro /Coriander

Coriandrumsativum

spinach beans, peas tachinid fly aphids, spider mites andpotato beetle

Chives Alliumschoenoprasum

Apples, carrots,tomatoes,brassica(broccoli,cabbage,mustard, etc),many others

carrots cabbage worms, carrotfly, aphids

beans, peas Same companiontraits as all alliums(onions, garlic,shallots, leeks,etc)said to preventapple scab after 3years planting atbase of apple trees

Commonname

scientific name Helps Helped by Attracts Repels / Distracts Avoid Comments

Dill Anethumgraveolens

Cabbages,Corn, Lettuce,Onions,Cucumbers

Hoverflies,Wasps, TomatoHorn Worms,honeybees,IchneumonidWasps

Aphids, spider mites,squash bugs, cabbagelooper

carrots,tomatoes

one of the fewplants said to growwith fennel

Fennel Foeniculumvulgare

Dill Dill ladybugs,syrphid fly,tachinid fly

aphids Almosteverything

Fennel isallelopathic to mostgarden plants,inhibiting growth,causing to bolt, oractually killingmany plants

Garlic Allium sativum Apple trees,Pear trees,Roses,Cucumbers,Peas, Lettuce,Celery

Aphids, cabbage looper,ants, rabbits, cabbagemaggot

Deters rabbits, samecompanion traits asall alliums (onions,chives, shallots,leeks, etc)

List of companion plants 6

Hemp Cannabis sativaL. subsp. sativa

Brassica(cabbage,brusselssprouts, otherkales)

Repels many typesof beetles whichattack cabbages.

Hyssop Hyssopusofficinalis

Cabbage,grapes

honeybees,butterflies

Cabbage moth larvae,Cabbage Butterflies

Stimulates growthof grapes.

Lovage Levisticumofficinale

Almost allplants

beans IchneumonidWasps, groundbeetles (good)

rhubarb Is thought toimprove the healthof almost all plants,like borage andgeraniums, isconsidered a "magicbullet" ofcompanion planting

Oregano Origanumvulgare

Tomatoes,peppers, manyother plants

basil aphids provides groundcover andmuch-neededhumidity for pepperplants if allowed tospread among them

Commonname

scientific name Helps Helped by Attracts Repels / Distracts Avoid Comments

Peppermint Mentha piperita Brassica(cabbage,kholrabi,broccoli, andthe other kales)

cabbage fly, ants,cabbage looper

Repels cabbageflies, has samegeneral companionproperties as othermints

Rosemary Rosmarinusofficinalis

sage, cabbage,beans, carrots

bean beetle Basil Deters cabbageflies, repels manybean parasites

Sage Salviaofficinalis

rosemary,cabbage, beans,carrots

honeybees,cabbagebutterfly

cabbage flies, carrot fly,black flea beetle,cabbage looper, cabbagemaggot

Deters cabbageflies, repels manybean parasites

Southernwood Artemisiaabrotanum

Fruit trees Controls cabbagemoths and malariamosquitoes.

Spearmint Mentha spicata ants, aphids Controls ants andaphids, has samegeneral companionproperties as othermints.

SummerSavoury

Saturejahortensis

Green beans,onions,

also delaysgermination ofcertain foul herbs

Tansy Tanacetumvulgare

beans,cucurbits(cucumbers,squash, etc),corn, roses

honeybees flyinginsects(IchneumonidWasps), Japanesebeetles, stripedcucumber beetles,squash bugs and ants

Is reputed togenerally repelinsects (except fornectar-eating types).This herb should notbe consumed, as itis quite toxic.

List of companion plants 7

Tarragon Artemisiadracunculus

Everything, butespeciallyeggplant

Its scent is dislikedby most pests, andthis plant is alsothought to haveNurse Plantproperties,enhancing thegrowth and flavor ofcrops grown with it.

Flowers

Flowers Common

NameLatin Name Helps Helped

byAttracts Repels /

DistractsAvoid Comments

Geraniums Pelargoniumspp.

Roses,tomatoes,peppers, grapes

leafhoppers,Japanesebeetles

A trap crop, attracting pests away fromroses and grape vines, distracts beetleafhoppers, carrier of the curly top virus,away from Solanaceous plants liketomatoes, peppers, eggplant, and tobacco

Lupin Lupinus Cucurbits,brassica, lettuce,rosemary, dill,strawberry

summersavory

Honeybees tomatoesand othersolanicae

This wildflower is actually a legume,hosting bacteria that fixes nitrogen in thesoil, fertilizing it for neighboring plants

Marigold AsteraceaeCalendulaTagetes

most plants,especiallytomatoes andpeppers,cucurbits(cucumbers,gourds, squash),brassicas(broccoli, kale,cabbage)

nematodes,beet leafhoppers,other pests

Marigolds are a wonder-drug of thecompanion plant world, invoking the saying"plant them everywhere in your garden".French marigolds produce a pesticidalchemical from their roots, so strong it lastsyears after they are gone. Mexicanmarigolds do the same, but are so strongthey will inhibit the growth of some moretender herbs. Certain Varieties of marigolds(Tagetes) can help manage eelworms(Root-knot nematode) when planted theyear before [2]. Tagetes has also been foundeffective against perennial weeds such asRanunculus ficaria (Celandine),Aegopodium podagraria (Ground elder),Glechoma hederacea (Ground ivy),Agropyron repens (Couch grass),Convolvulus arvensis (Field bindweed),Equisetum arvense (Field/CommonHorsetail) and other 'starchy' weeds.

Petunia Petunia xhybrida

cucurbits(squash,pumpkins,cucumbers),asparagus

leafhoppers,Japanesebeetles,aphids,asparagusbeetle

Is a trap crop almost identical to geraniumsin function

List of companion plants 8

Nasturtium Tropaeolummajus

Many plants,especiallycucurbits(melons,cucumbers,gourds), beans,tomatoes, appletrees, brassicas(broccoli,cabbage, etc),radish

predatoryinsects

aphids,cabbagelooper,squash bug,white fly,cucumberbeetles

radish,cauliflower

Both work as trap crops for aphids, isamong the best at attracting predatoryinsects

Sunflower Helianthusannuus

corn, tomatoes aphids Was grown as a companion for corn(maize)before modern Europeans arrived in theAmericas, supposedly increases theirproduction, ants herd aphids ontosunflowers, keeping them off neighboringplants

Tansy Tanacetumvulgare

cucurbits(cucumbers,squash, etc),raspberries andrelatives, roses,corn

sugar ants,Japanesebeetles,cucumberbeetles,squash bugs,mice

Toxic to many animals, don't plant it wherelivestock browse

Yarrow Achilleamillefolium

many plants predatorywasps,ladybugs,hoverflies,damselbugs

May increase the essential oil production ofsome herbs. Also improves soil quality, usethe leaves to enrich compost, or as mulch.

Other

Other Common

NameLatinName

Helps Helpedby

Attracts Repels /Distracts

Avoid Comments

Alfalfa Medicagosativa

Cotton assassin bug, big-eyedbug, Ladybug, parasticwasps

Lygus bugs Used by farmers to reduce cotton pests, a good cropto improve soil; fixes nitrogen like beans do. Alsobreaks up hardpan and other tough soil.

Trees

Apple

List of companion plants 9

APPLE TREES Common

NameLatin Name Helps Helped by Attracts Repels /

DistractsAvoid Comments

Apple Malusdomestica

Clover, Chive, Garlic, Leek, Nasturtium,Southernwood, Daffodils, Comfrey

Cedar because ofapple-cedar rust

Apricot

APRICOT TREES Common

NameLatin Name Helps Helped

byAttracts Repels /

DistractsAvoid Comments

Apricot Prunusarmeniaca

A fungus that peppers are prone to can infect apricot treescausing a lot of harm.

Walnut

WALNUT TREES Common

NameLatinName

Helps Helpedby

Attracts Repels /Distracts

Avoid Comments

Walnut Juglans Black walnut is harmful to the growth of all nightshade plants, includingDatura or Jimson weed, eggplant, mandrake, deadly nightshade orbelladonna, capsicum (paprika, chile pepper), potato, tobacco, tomato,and petunia.

See also• List of beneficial weeds• List of repellent plants• List of pest-regulating plants• Push–pull technology; (pest control strategy for maize and sorghum)• Biological pest control• Sustainable agriculture• Sustainable landscaping• Sustainable gardening

List of companion plants 10

References[1] nss abstracts (http:/ / www. warren-wilson. edu/ ~research/ Undergrad_Res/ nss97-98/ fall1997abs. html)[2] http:/ / www. agr. state. nc. us/ AGRONOMI/ nnote1. htm

• Sally Jean Cunnigham (1998). "Great Garden Companions", ISBN 0-87596-847-3• The Rodale Herb Book, Eighth Printing, c1974, ISBN 0-87857-076-4• Companion Planting Guide, Ute Bohnsack (http:/ / www. gb0063551. pwp. blueyonder. co. uk/ seeog/

companion/ )• Companion Planting (http:/ / www. ghorganics. com/ page2. html)• Companion plants (http:/ / eap. mcgill. ca/ publications/ EAP55. htm) by Professor Stuart B. Hill Department of

Entomology Macdonald College• DGS Gardening companion plant list (http:/ / www. dgsgardening. btinternet. co. uk/ companion. htm)• Cass County Extension Companion Planting List (http:/ / www. ext. nodak. edu/ county/ cass/ horticulture/

vegetables/ companion. htm)• (http:/ / www. gardentoad. com/ companionplants. html)

Article Sources and Contributors 11

Article Sources and ContributorsList of companion plants  Source: http://en.wikipedia.org/w/index.php?oldid=366534783  Contributors: Abrahami, Alan Liefting, Altenmann, Anywayz, Ascorbic, Ben Ward, Cacuija, CharlesWicksteed, Dycedarg, Dymonite, Edgar181, Erebus555, JIP, Jade Andersen, Jeepday, Jorfer, Kazvorpal, Look2See1, Meng.benjamin, Mild Bill Hiccup, Nehrams2020, Pinethicket, Plantsurfer,Quercusrobur, Ricardo Carneiro Pires, Rkmlai, ShakingSpirit, Skier Dude, Slightsmile, Sluzzelin, Stephenb, Stevesmith1983, Theseus.u, Toh-maag, Waitak, Washburnmav, Yyem, 113anonymous edits

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