Companion Planting Chart: Tomatoes, Potatoes, and More!

BEANS  LovageNasturtium  Rosemary   CornSunflowers Corn helps climbing beans (not bush beans), offering a pure construction to assist beans attain daylight. corn is planted first, stopping early competitors. Supply: USDA, NIH.

Lovage attracts useful bugs reminiscent of parasitoid waspswhich prey on aphids and beetles. Supply.

Nasturtiums proves an efficient entice crop that pulls pests away from French/bush beans. Supply.

Rosemary repels widespread backyard pests because of its compounds—camphor, cineole, and camphene.

Sunflowers present assist as a dwelling trellis. Supply: Three Sisters Guild, Eames-Sheavly, Cornell Cooperative Extension (1993)

BEETSBush beans  Garlic  Lettuce  Onion familyBush beans are useful to beets, fixing nitrogen making it obtainable to soil; nonetheless, runner or pole beans stunt development.

Garlic improves beet development and taste. 

Lettuce grows effectively with beets, on account of complementary root constructions, soil shading, and weed suppression

Onions and beets develop effectively collectively, decreasing pest stress, rising root yield, and benefiting soil well being and crop spacing.

BROCCOLIAlyssumDill Chinese language CabbageMarigoldNasturtiumOreganoSageThyme

Alyssum helps broccoli by attracting hoverflies, that are necessary pure predators of aphids—the principle pest of broccoli.. Supply: USDA. 

Chinese language cabbage might be successfully used as a entice crop planted alongside broccoli to draw and divert cabbage root flies. Supply: NIH

Dill comprise repellent properties towards broccoli pests. Supply. It’s additionally a bodily barrier to guard broccoli from pest assault. Supply.

Sage reduces pest egg-laying of diamondback moths on intercropped broccoli. Supply. 

Thyme and nasturium scale back cabbage looper and imported cabbageworm injury in broccoli. Supply: Iowa State College

CABBAGEChamomileDillGarlicNasturtium  OnionRosemarySageTansyThyme

Chamomile deters pests when intercropped with cabbage. Supply.

Dill intercropped with cabbage attracts parasitic was to manage cabbage worms. Supply: Kenny & Chapman (1988). 

Garlic repels diamondback moths. Supply.

Thyme disrupts egg-laying of the diamondback moth. Supply.

Nasturtium, onion ,and thyme plots have resistance towards cabbage worm and cabbage looper. Supply.

Onions assist cabbage by decreasing pest stress and boosting productiveness. Supply. 

Sage, dill, chamomile and hyssop disrupt the egg laying behaviour of the cabbageworm. Supply.

CARROTSChives  Leeks  Onions  PeasRadishes  Rosemary  SageSavory

Onions intercropped with carrot considerably decreased carrot fly assaults. Supply. Onions additionally enhance root yield. Supply.

Chive and leeks may repel carrot fly by means of odor masking and interference. 

Marigolds scale back nematodes within the soil to forestall root knot points and crop stunting, however solely when grown and ploughed within the soil the yr earlier than. Supply.

Sage odor alters carrot fly habits, doubtlessly serving to defend carrots by disrupting the flies’ host-finding. Supply.

Summer time Savory considerably reduces carrot psyllids, aphids, nematodes, and carrot fly. Supply.

CORNBeans (pole)  Cucumbers  Dill    GeraniumPeas  PotatoesSquash  SunflowerBeans intercropped with corn enhance yield and soil fertility, in response to a number of sources.

Pole beans climb and assist corn and squash, protect soil, deter pests, and suppress weeds (squash vine borers, mammals). Supply.

Geranium (Pelargonium) attracts Japanese beetles; geranium’s toxins paralyze them, decreasing beetle stress on corn silks. Supply. 

Potatoes utilizing subterranean house complement corn’s shallow roots; they stabilize soil and shade floor.

Dwarf sunflowers planted round corn attracted a military of pest-hungry ladybugs. (Kansas Academy of Science).

CUCUMBERSPole Beans  CornDill   Nasturtiums  Oregano  Chili PepperRadish  Sunflowers  Tansy

Beans add nitrogen, aiding cucumber development and decreasing pest incidence. Supply. Bean flowers appeal to pollinators. Each beans and cukes can share assist constructions.

Corn intercropped with cucumbers reduces cucumber insect pests by over 50% versus cucumbers grown alone. Supply.

Dill repels aphids and mites which will assault cucumbers. Supply.

Nasturtium is a entice plant that retains cucumber beetles, squash bugs, squash beetles, whiteflies and aphids away from cucumber. Supply.

Scorching Pepper intercropped with cucumber decreased root knot nematode (Meloidogyne incognita) assault. Additionally, peppers creates resistance to cucumber mosaic virus. 

Radishes are a companion plant to repel cucumber beetles. A 2008 research revealed in HortTechnology.

Sunflowers create a pure trellis for the climbing cucumber vines, present shade, and appeal to pollinators.

Tansy (Tanacetum vulgare) repels cucumber beetles, ants, bugs, beetles, and flying bugs. Supply.

LETTUCEAlyssum ChivesGarlicOnion Oregano  Peas  Poached EggRadishThymeAlyssum intercropped with lettuce controls aphids. Supply: USDA.Chives, garlic, and onions deter aphids and different pests by masking scent. Supply: Iowa State College.Onions planted round lettuce led to fewer cutworms. Supply: CBTA.Oregano brings in predators for pests, particularly floor beetles.Peas profit lettuce, including nitrogen to the soil. Supply. Poached egg plant attracts hoverflies, whose larvae then devour aphids. Supply: Journal of Agricultural Science.Radishes are a entice crop for lettuce, attracting pests away from lettuce and enhancing total crop productiveness. Supply.Thyme deters cabbage worm, looper, and weevil. Supply.ONIONSBeets  Cabbage  Carrot  Chard  Lettuce  Strawberry  Tomatoes

Beets intercropped with onions influences onion seed yield positively. Supply.

Marigolds scale back the egg laying of onion maggot fly. Supply: Scientia Agricola

PEASAlyssum  Chives  CornLettuce  Mint  Radish  Spinach

Alyssum brings pollinators to the pea flowers and encourages lacewings, which eat aphids. Supply.

Lettuce interplants effectively with peas and might improve effectivity with out hurting pea yield. Supply: Journal of Agricultural Sciences

PEPPERSBasil  ChivesCilantroDillLeeks Onions  OreganoRosemary

Basil improves the expansion and taste of peppers and has a protecting, insecticidal high quality. Similar goes for oregano.

Dill intercropping helps useful predators that assist scale back corn borer injury on peppers. Supply.

Leeks and chives may help peppers by repelling aphids. Supply.

Onions emit robust odors that may repel varied pepper pests, together with aphids, thrips, and whiteflies.

Rosemary advantages peppers by decreasing aphids, if planted close by (round 0.5 meters) . Supply.

POTATOESBasil  Beans  Calendula    Cilantro  DillGarlicHorseradish  Onion Peas  Tansy

Basil discourages Colorado potato beetles and in addition attracts useful bugs. Supply.

Beans (bush) intercropped with potatoes enhance each yield and soil well being. Supply.

Calendula, tansy, and horseradish planted on the nook of a potato patch keep off Colorado potato beetles. Supply: ACS

Cilantro planted close to potatoes reduces populations of the Colorado potato beetle, aphids, carrot rust fly and spider mite. Supply.

Dill does a terrific job of luring enemies of the Colorado potato beetle. Supply: Rutgers College. 

Garlic planted with potatoes (3:1 ratio) led to the very best illness suppression (late blight) and yield acquire. Supply.

Onions decreased aphids and pest populations. Supply.

PUMPKINS and WINTER SQUASH   Beans Borage  Calendula  Corn  LovageMarigold  Nasturtium  OreganoRadishTansy

Pole beans produce nitrogen for the squash and pumpkin, and squash is historically planted with corn and beans (“three sisters”) to disorient the grownup vine borer. Supply.

Borage flowers convey predators which eat the squash pests, plus pollinators! Supply: Permaculture Analysis Institute

Marigold deter beetles, particularly the striped cucumber beetle and squash bug. Supply.

Nasturtium, radish, and tansy repel cucumber beetles. Supply.

RADISHESBok ChoiChervil  CollardsLettuceNasturtium  PeasSpinach

Bok choi (pac choi) intercropped with radish boosted harvest. Supply: NIH.

Collards complement radishes. In the identical plot, they enhance use of house with none unfavourable results on development.

Head lettuce is an effective companion to radish however keep away from overcrowding.

Peas are effectively documented as an early nitrogen-fixer, bettering fertility and radish development. Supply.

Spinach intercropped with radish considerably elevated development and yield. Supply.  

SPINACHBeans  CeleryCilantro  CoreopsisPeas  Radish

Peas and pole beans present pure shade for the spinach, and in addition enhance soil fertility to enhance nutrient availability. Supply.

Radishes planted alongside spinach can optimize house, scale back pests, and enhance total yield. Supply.

Coreopsis is a beautiful flower that may appeal to useful bugs, like bees, butterflies, and different pollinators, together with hoverflies, soldier beetles, and tachinid flies. Add to any mattress!

TOMATOESAsparagusBasil  BeansBorage  Calendula Celery MarigoldParsley  RadishRosemaryThyme

Asparagus and tomatoes assist one another by repelling one another’s pests—tomatoes launch solanine to discourage asparagus beetles, whereas asparagus secretes compounds that repel root-knot nematodes. (Supply: Rutgers)

Basil merely makes tomatoes more healthy, releasing volatiles that prime the tomato’s protection system, enhancing its response to wounding and pest assault. Supply: NIH.

Bush Beans interplanted with tomatoes lower illness. Supply: Jessica Walliser Plant Companions.

Borage attracts the parasitic wasp that assaults aphids and tomato hornworms. Supply. Borage additionally attracts pollinators, and enhances tomato development, style, and illness resistance when intercropped. Supply.

Calendula is a flower companion which repels tomato pests.

Marigolds repel whiteflies when planted with tomatoes. Supply. 

Radish works as a entice crop for flea beetles, a pest of younger tomato seedlings.

Rosemary oils repel aphids, thrips, and whiteflies—all widespread tomato pests .

Thyme helps scale back insect injury to tomatoes. Scientists at Iowa State noticed a discount in egg-laying by grownup armyworms when tomatoes had been interplanted with the herb.

Thyme improves tomato root improvement, flowers, and fruit in research when by itself. Supply.

ZUCCHINI/ SUMMER SQUASHBuckwheat  MarigoldNasturtium Oregano Radishes ZinniaBuckwheat alternating with squash strips reduces aphids, plant illness, and will increase useful poplations.  Supply: College of Florida.  

Marigold intercropped with zucchini demonstrated the very best resistance to cucumber beetle. Supply: RES

Oregano offers pest safety as a pure insecticide. Supply.

Nasturtium repels cucumber beetles. Supply.

Radishes planted alongside zucchini reduces squash bug egg laying. College of Nebraska.

Zinnia appeal to predators that eat whiteflies and in addition appeal to pollinators. Permaculture Institute.