Faculty of Agriculture Saba Basha, Alex Univ.Prof. Dr Magdy Abdel-Zaher

Good and Bad Neighbors of PlantsPlantGood NeighborsHow it worksBad Neighbors

AppleNasturtium, ChivesNasturtium climbs tree and is said to repel codling mothPotatoes

ApricotBasil, Tansy, AsparagusBasil and tansy are said to repel damaging insects

AsparagusApricot, Basil, Chives, Comfrey, Lovage, Marjoram, Parsley, TomatoesBasil and Parsley are said to improve flavour. Onions and garlic release substances reducing growth.Garlic, Onions

Balm (Lemon)TomatoesAttracts bees, said to enhance flavour and growth

BasilTomatoesBasil said to repel flies and mosquitoes

Beans (climbing)Broccoli, Brussel Sprouts, Cabbage, Carrots, Cauliflower, Corn, Lettuce, Lovage, Majoram, ParsleyBeetroot, Chives, Garlic, Gladiolus, Onions, Sunflower

BeetrootBeans (bush), Broccoli, Brussel Sprouts, Cabbage, Cauliflower, Kohl Rabi, Lettuce, Lovage, Marjoram, Onion, Peas, Potato, Spinach, SilverbeetBad Neighbours roots release substances reducing growthBeans (Climbing), Tomato

BorageSquash, Strawberries, TomatoSaid to deter tomato worm and improve tomato flavour and yield. Said to increase strawberry yield.

Brassicas (Incl: Broccoli, Cabbage, Cauliflower)Beans, Beetroot, Carrots, Chamomile, Coriander, Cucumber, Dill, Lettuce, Lovage, Marjoram, Marigold (French), Mint, Nasturtium, Pea, Potato, Rosemary, Sage, Tansy, Thyme,TomatoZinniasDill attracts a Cabbage White Butterfly controlling wasp. Nasturtium disguises and repels aphids. Sage repels the Cabbage White Butterfly. Zinnias attract ladybirds, which we love! Bad Neighbours roots release substances reducing growthGarlic, Rue, Strawberry

Capsicum, ChilliCarrots, Onions, Tomato

CarrotsBeans, Chives, Coriander, Cucumber, Leeks, Lettuce, Lovage, Marjoram, Onion, Pea, Radish, Rosemary, Sage, TomatoBad Neighbours roots release substances reducing growthDill, Celery

CeleryCabbage, Chives, Dill, Dwarf Beans, Leek, Lovage, Majoram, Onion, Pea, Sage, Spinach, TomatoBad Neighbours roots release substances reducing growthCarrots, Parsnip, Potato

ChamomileCabbage, OnionDeters flies and mosquitoes. Strengthens neighbouring plants

ChivesApples, Cucumbers, Lettuce, PeasPrevents Apple Scab. Said to deter aphidsBeans

CucumberBasil, Bens, Borage, Broccoli, Brussel Sprouts, Cabbage, Carrot, Cauliflower, Corn, Dill Kohl Rabi, Lettuce, Lovage, Marjoram, Nasturtium, Parsnip, Pea, Radish, Sunflower, TansyBad Neighbours roots release substances reducing growthPotato, Sage, Strongly Aromatic Herbs

DillBrassicas (Incl: Broccoli, Cabbage, Cauliflower)Dill attracts a Cabbage White Butterfly controlling wasp

EggplantBeans, Spinach

GarlicApricot, Cherry, Mulberry, Parsnip, Peach, Pear, Raspberry, Rosemary, RoseDeters aphids, especially from roses and raspberry. Repels Cabbage White ButterflyBeans, Cabbage, Peas, Strawberry

Kohl RabiBeetroot, OnionBeans, Tomato

LeekCarrot, Celery, Lovage, Majoram, Onion, Parsnip, StrawberryBeans, Peas, Parsley

LettuceAchillea, Beans, Beetroot, Cabbage, Carrot, Chervil, Coreopsis, Cucumber, Lovage, Marjoram, Marigold (French), Onion, Parsnip, Pea, Radish, Strawberry, ZinniaAchillea, Coreopsis & Zinnia attract pollinators and offer shade for lettuceParsley

Marigolds (French)Numerous vegetables, including tomatoKills root knot nematodes and eel worm

MelonRadish, Sweet Corn

MintCabbage, TomatoDeters pests such as Cabbage White Butterfly, ants and fleas

NasturtiumCabbages, Fruit Trees, Radishes, ZucchiniFlowers repel aphids and codling moth. Cabbage white butterfly is attracted to this plant, and will seek it out over cabbages

OnionBeetroot, Broccoli, Cabbage, Carrot, Chamomile, Leeks, Lettuce, Lovage, Marjoram, Parsley, Parsnip, Silverbeet, Strawberry, Summer Savory, TomatoSmell of onion said to deter numerous pestsOnions release substances reducing growth of Bad NeighboursAsparagus, Beans, Gladioli, Peas

ParsleyAsparagus, Sweet Corn, TomatoSaid to improve flavour of asparagus and tomato

PeasBeans, Beetroot, Brussel Sprouts, Cabbage, Carrot, Cauliflower, Celery, Cucumber, Lettuce, Lovage, Marjoram, Parsnip, Potato, Radish, Sage, Squash, Sweet CornBad Neighbours roots release substances reducing growth. Sweet Corn has traditionally been used as living stakes for peasChives, Garlic, Onion, Shallots

PotatoBeans, Broccoli, Brussel Sprouts, Cabbage, Cauliflower, Corn, Eggplant, Horseradish, Lovage, Marjoram, Marigold (French), Nasturtium, Parsnip, Peas, Sweet Alyssum, Sweet Corn, WatermelonSweet Alyssum and Marigolds attract beneficials and suppress weedsPotatoes release substances reducing growth of Bad Neighbours. Horseradish should be planted at the corners of the patchApple, Celery, Cherry, Cucumber, Pumpkin, Raspberry, Rosemary, Squash, Sunflower, Tomato

PumpkinBeans, Cabbage, Eggplant, Peas, Radish, Sweet CornBad Neighbours roots release substances reducing growthPotato

RadishBeans, Carrot, Chervil, Cucumber, Sweet Corn, Cucumber, Lettuce, Lovage, Marjoram, Nasturtium, Parsnip, Pea, Spinach, Sweet CornRadish is said to attract leaf miners from SpinachHyssop

RaspberryBlackberries, Potato, Tomato

RosemaryBeans, Cabbage, Carrot, SageSaid to deter Cabbage white butterfly. Attracts beneficials

SageBrassicas (Incl: Broccoli, Cabbage, Cauliflower), Carrot, RosemarySage repels the Cabbage White ButterflyCucumber

SilverbeetBeetroot, Cherry, Lavender, Lovage, Marjoram, OnionBasil, Wormwood

SpinachCelery, Eggplant, Strawberries

SquashBorage, Lovage, Marjoram, Nasturtium, Peas, Sunflower, Sweet Corn, TansyPotato

StrawberryBeans, Borage, Chives, Leek, Lettuce, Marigold (French), Onion, Pyrethrum, Sage, SpinachBrassicas (Incl: Broccoli, Cabbage, Cauliflower), Brussel Sprouts, Garlic

SunflowerApricots, Cucumbers, SquashBeans, Potato

Sweet CornBeans, Cucumbers, Lovage, Marjoram, Melon, Parsnip, Peas, Potato, Pumpkin, Radish, Squash, ZucchiniSweet Corn has traditionally been used as living stakes for peas. Bad Neighbours roots release substances reducing growthCabbage

TomatoAsparagus, Basil, Celery, Borage, Broccoli, Brussel Sprouts, Cabbage, Carrot, Cauliflower, Celery, Chives, Dill, Gooseberry, Grape, Hyssop, Lovage, Mariglod (French), Marjoram, Mint, Nasturtium, Onion, Parsley, Parsnip, TurnipMarigolds said to repel white fly and root knot nematode. Bad Neighbours roots release substances reducing growthApricots, Beetroot, Fennel, Kohl Rabi, Potato, Rosemary, Sweet Corn

TurnipCucumbers, Lettuce, Nasturtium, Peas, Tomato

WatermelonPotato

YarrowMost aromatic herbsWhen planted along pathways, is said to enhance essential oil production and herb flavour.

ZucchiniLovage, Marjoram, Nasturtium, Sweet Corn

Following is a partial list of garden plants with their "good" and "bad" neighbors:

GarlicGood neighbors--strawberries, cucumbers, raspberries, lilies, carrots, tree fruits, roses, beets, tomatoes, tulipsBad neighbors--peas, cabbage, pole beans

AsparagusGood neighbors--cucumbers, lettuce, parsley, tomatoesBad neighbors--garlic, onions

BeetsGood neighbors--bush beans,dill, cucumbers, garlic, cabbages, coriander, cumin, lettuces, summer squash, onionsBad neighbors--potatoes, leeks, corn, spinach

CarrotsGood neighbors--Dill, peas, garlic, leeks, chard, radishes, rosemary, sage, chives, lettuces, salsify, tomatoes, chicory, onionsBad neighbors--None

CeleryGood neighbors--Bush beans, cucumbers, chamomile, cabbage family, leeks, tomatoesBad neighbors--potatoes, lettuces, corn

Cabbage familyGood neighbors--artemisias, beans, dill, endive, peas, chamomile, potatoes, lettuce, coriander, cumin, leeks, chard, mint, beets, celery, spinach, tomatoesBad neighbors--strawberries, muistard, garlic, onions

CucumbersGood neighbors--Beans, dill, peas, fennel, catnip, cabbage, lettuce, coriander, cumin, leeks, corn, beets, celery, onionsBad neighbors--radishes, tomatoes

SquashGood neighbors--nasturtium, corn, beets, pole beans, onionsBad neighborsnone

SpinachGood neighbors--Strawberries, potatoes, cabbage, radishes, celery, pole beans, tomatoesBad neighbors--none

BeansGood neighbors--Winter savory, strawberries, cucumbers, potatoes, cabbage, lettuce, beets, celery, tomatoesBad neighbors--Peas, fennel, garlic, leeksn, onions

Cutting lettucesGood neighbors--dill, fennel, cabbage, radishes, beets, salsify, asparagus, tomatoesBad neighbors--none

Heading lettucesGood neighbors--Beans, dill, peas, strawberries, fennel, cucumbers, chervil, cabbages, cress, leeks, corn, carottes, mint, radishes, beets, salsify, asparagus, tomatoes, chicory, onionsBad neighbors--Parsley, celery

CornGood neighbors--Beans, cucumbers, potatoes, lettuces, squash, melons, tomatoesBad neighbors--Beets, celery

OnionsGood neighbors--Winter savory, dill, strawberries, cucumbers, chamomile, lettuce, carrots, beets, salsify, chicoryBad neighbors--Beans, peas, cabbages

LeeksGood neighbors--endives, strawberries, chamomile, cabbages, lettuce, carrots, salsify, celery, tomatoesBad neighbors--Beans, peas, beets

PeasGood neighbors--dill, fennel, cucumbers, cabbages, lettuce, corn, carrots, radishes, squashBad neighbors--Beans, potatoes, leeks, tomatoes, onions

PotatoesGood neighbors--Favas, chamomile, nasturtium, cabbages, cumin, corn, horseradish, mint, spinach, marigoldsBad neighbors--Peas, squash, beets, celery, tomatoes

TomatoesGood neighbors--beans, nasturtium, garlic, cabbages, lettuce, leeks, corn, carrots, parsley, lettuce, radishes, beets, celery, spinach, chicoryBad neighbors--peas, fennel, potatoes