Companion planting chart

Which plants are traditionally grown together, and which to keep apart.

Most companion pairings are garden tradition, and research supports few of them. The ones with the best evidence are practical rather than magical: flowering plants such as sweet alyssum feed the beneficial insects that eat aphids, tall crops can shade cool-season greens, and keeping members of the same family apart slows shared pests and diseases. Treat the rest as ideas to try.

Plant	Grows well with	Keep apart from
Acorn Squash	Corn, bean, Nasturtium	Potato
Amaranth	Corn, Onion, Pepper, Tomato	Basil, brassicas
Apple	Chives, comfrey, Nasturtium, Dill, clover	walnut, Potato, Fennel
Artichoke	French Tarragon, peas, Sunflower, Borage	Potato, Lettuce
Arugula	Carrot, bean, Cucumber	—
Asparagus	Tomato, Parsley, Basil, Marigold	Onion, Garlic, Potato
Bachelor's Button	Cosmos, poppy, larkspur, Carrot, wheat	Fennel, brassicas
Basil	Tomato, Pepper, Oregano, Parsley	rue, Sage
Bay Laurel	Rosemary, Lavender, Sage, Thyme	Mint, Fennel
Bee Balm	Purple Coneflower, black eyed susan, Yarrow, Garden Phlox, rudbeckia	Fennel, brassicas
Beet	brassicas, Onion, Lettuce	pole bean
Black-Eyed Susan	Purple Coneflower, bee balm, ornamental grasses, salvia, Tickseed	Fennel, aggressive spreaders like mint
Blackberry	comfrey, clover, tansy, Yarrow	Raspberry, rose, walnut
Blueberry	blueberry (second variety), rhododendron, azalea, pine	Tomato, Pepper, vegetable garden in general (pH conflict)
Bok Choy	Celery, Onion, Carrot	Tomato
Borage	Tomato, squash, Strawberry, Cucumber	Fennel, brassicas
Broccoli	Beet, Celery, Onion, Chamomile	Strawberry, Tomato
Brussels Sprouts	Beet, Celery, Dill, Onion	Strawberry, Tomato
Buckwheat	Garlic, brassicas, squash, tomatoes, beans	carrots, parsnips
Butterfly Weed	black eyed susan, Purple Coneflower, rudbeckia, liatris, wild bergamot	Fennel, high nitrogen crops
Butternut Squash	Corn, bean, Nasturtium	Potato
Cabbage	Beet, Celery, Dill, Onion	Strawberry, Tomato
Calendula	Tomato, Asparagus, Carrot, brassicas	—
Cantaloupe	Corn, Sunflower, bean	Potato
Carrot	Onion, Leek, Rosemary, Sage, Tomato	Dill, Parsnip
Cauliflower	Beet, Celery, Onion	Strawberry, Tomato
Celeriac	Leek, Tomato, Cabbage, bush bean	Carrot, Parsley, Dill
Celery	Tomato, Leek, Cabbage, Cauliflower	Carrot, Parsnip, Parsley, Corn
Celosia	Zinnia, Marigold, Basil, Pepper, Amaranth	Fennel, brassicas
Chamomile	Cabbage, Onion, Cucumber, Basil	Mint, Fennel
Cherry	comfrey, Dill, clover, Marigold	walnut, wheat, grass
Chervil	Radish, Lettuce, Carrot, Spinach	Fennel, Dill
China Aster	Snapdragon, larkspur, Zinnia, Calendula	gladiolus, Fennel
Chives	Carrot, Tomato, rose	bean, Pea
Cilantro	Tomato, Pepper, Spinach, bean	Fennel, Dill
Cleome	Zinnia, Sunflower, Cosmos, rudbeckia, tithonia	Fennel, low growing annuals that may be smothered by volunteers
Collard Greens	Beet, Celery, Onion	Strawberry, Tomato
Corn	bean, squash, Cucumber	Tomato
Cosmos	Tomato, Pepper, squash, bean	—
Crimson Clover	Corn, sorghum, tomatoes, peppers, cucumbers	onions, Garlic, other legumes
Crown Daisy	Lettuce, Spinach, Radish, Scallion	—
Cucumber	Corn, bean, Radish, Dill, Nasturtium	Sage, Potato
Currant	comfrey, hyssop, clover, Mint	white pine, walnut, Gooseberry
Dahlia	Cosmos, Zinnia, Basil, Marigold, salvia	Fennel, gladiolus
Delicata Squash	Corn, bean, Nasturtium	Potato
Dill	Cucumber, brassicas, Corn, Onion	Carrot, Fennel
Edamame	Corn, squash, Carrot, Cucumber	Onion, Garlic, chive
Eggplant	Pepper, bean, Marigold, Thyme	Fennel
Elderberry	comfrey, Yarrow, clover, Fennel	walnut, belladonna
Endive	Radish, Carrot, chive, Garlic	Parsley, Celery, Lettuce
Escarole	Carrot, Radish, Garlic, Beet	Celery, Fennel
Fava Bean	brassicas, Carrot, Potato, Spinach	Onion, Garlic
Fennel	—	Tomato, Pepper, bean, Cilantro, Carrot
Field Pea	Corn, brassicas, tomatoes, squash, cucumbers	beans, other legumes, onions
Fig	rue, Basil, comfrey, Marigold	walnut, Fennel
Foxglove	hosta, fern, astilbe, lungwort, bleeding heart	Fennel, Dill
French Tarragon	Eggplant, Pepper, Tomato, brassicas	Fennel, Mint
Garden Phlox	Purple Coneflower, rudbeckia, bee balm, salvia, ornamental grasses	Fennel, other mildew prone plants
Garlic	Beet, Tomato, Pepper, Lettuce	bean, Pea
Garlic Chives (Buchu)	Carrot, Tomato, Lettuce	Green Bean, Pea
Gooseberry	comfrey, Tomato, hyssop, clover	white pine, walnut, Fennel
Grape	geranium, hyssop, clover, Oregano	walnut, Cabbage, Radish
Green Bean	Corn, Cucumber, Radish, Summer Savory	Onion, Garlic, Fennel, brassicas
Ground Cherry	Basil, Carrot, Marigold, Pepper	Fennel, brassicas
Hairy Vetch	tomatoes, peppers, Corn, brassicas, squash	beans, peas, other vetches
Hardy Kiwi	comfrey, clover, Borage, Nasturtium	walnut, aggressive ornamental vines
Hollyhock	roses, Garden Phlox, delphinium, Foxglove, Purple Coneflower	Fennel, other Malvaceae (mallow family plants share rust susceptibility)
Horseradish	Potato, fruit trees, Asparagus	Fennel, brassicas
Jerusalem Artichoke	Corn, Sunflower, bean	Potato, Tomato, Fennel
Kale	Onion, Beet, Celery, Potato	Tomato, Strawberry, bean, Pepper
Kohlrabi	Beet, Celery, Onion	Tomato, Pepper
Korean Chili Pepper	Basil, Onion, Scallion, Carrot	Fennel
Korean Perilla (Kkaennip)	Pepper, Eggplant, Cucumber	—
Korean Radish	Lettuce, Spinach, Scallion, Carrot	—
Korean Zucchini (Aehobak)	Corn, Green Bean, Nasturtium, Borage	Potato, Fennel
Lavender	rose, brassicas, Thyme, Sage	—
Leek	Beet, Carrot, Onion	bean, Pea
Lemon Balm	Tomato, brassicas, squash	—
Lemon Verbena	Rosemary, Lavender, Sage, Thyme	Mint, Fennel
Lemongrass	Tomato, Pepper, Eggplant, ginger	Mint, Fennel
Lettuce	Carrot, Radish, chive, Strawberry	Parsley, Celery
Lima Bean	Corn, squash, Carrot, Cucumber	Onion, Garlic, Fennel
Lovage	Tomato, Pepper, brassicas, Carrot	Fennel, Dill
Lupine	Foxglove, allium, hardy geranium, iris, salvia	Fennel, brassicas
Malabar Spinach	Cucumber, bean, Tomato, Pepper	Fennel, brassicas
Marigold	Tomato, Pepper, Eggplant, Cucumber	bean, brassicas
Mint	brassicas, Tomato	Parsley
Mizuna	Radish, Lettuce, Carrot, Beet	Strawberry, Fennel, other brassicas
Morning Glory	Sunflower, Corn, tithonia, Cleome, Zinnia	Fennel, Potato
Mulberry	comfrey, clover, Yarrow, chicory	walnut, grass turf beneath canopy
Mustard Greens	Celery, Carrot	Tomato
Napa Cabbage	Onion, Scallion, Celery, Dill	Tomato
Nasturtium	Cucumber, squash, brassicas, Tomato	—
New Zealand Spinach	bean, Carrot, Tomato, Pepper	Fennel, brassicas
Oats	brassicas, tomatoes, squash, peas, carrots	Corn, sorghum
Okra	Pepper, Basil, southern pea	—
Onion	Beet, brassicas, Carrot, Lettuce	bean, Pea
Oregano	Pepper, bean, brassicas, Tomato	Cucumber
Parsley	Tomato, Pepper, Asparagus	Mint
Parsnip	Onion, Radish, Pea	Carrot
Pawpaw	comfrey, spicebush, Elderberry, clover	walnut, grass turf
Pea	Carrot, Radish, Cucumber, Lettuce	Onion, Garlic, Shallot
Peach	Basil, tansy, comfrey, clover	walnut, Raspberry, Tomato
Peanut	Corn, squash, Sunflower	Onion, Garlic, Fennel
Pear	comfrey, Chives, Dill, clover	walnut, juniper
Peony	allium, salvia, iris, baptisia, catmint	Fennel, walnut
Pepper	Basil, Tomato, Onion, Carrot	Fennel, brassicas
Plum	comfrey, Chives, Nasturtium, clover	walnut, Tomato, Potato
Popcorn	bean, squash, Cucumber, Amaranth	Tomato, Fennel
Potato	bean, Corn, Cabbage	Tomato, squash
Pumpkin	Corn, bean, Nasturtium, Marigold	Potato, brassicas
Purple Coneflower	black eyed susan, bee balm, rudbeckia, ornamental grasses, salvia	Fennel, shallow rooted annuals that require frequent watering
Radicchio	Carrot, Beet, Radish, Garlic	Fennel, Celery
Radish	Carrot, Lettuce, Spinach, Nasturtium	hyssop
Raspberry	Garlic, Chives, Marigold	Potato, Tomato, Eggplant, Blackberry
Rhubarb	Onion, Garlic, Strawberry, brassicas	Tomato, Pumpkin
Rosemary	brassicas, bean, Carrot, Sage	—
Rutabaga	Pea, Onion	Tomato, Pepper
Sage	brassicas, Tomato, Carrot, Rosemary	Cucumber, Onion
Salsify	Carrot, Parsnip, Leek, Onion	Fennel, brassicas
Scallion	Carrot, Lettuce, Tomato, Strawberry	bean, Pea, Sage
Serviceberry	comfrey, clover, wild ginger, ferns	walnut, invasive shrubs
Shallot	Beet, brassicas, Carrot	bean, Pea
Shiso (Japanese Perilla)	Eggplant, Pepper, Cucumber, Tomato	Fennel, Basil
Snapdragon	pansy, Sweet Alyssum, bachelor's button, stock, Calendula	Fennel, Basil
Sorrel	Strawberry, Raspberry, Spinach, Chives	—
Spinach	Strawberry, Pea, Radish, Cabbage	Potato, Fennel
Stevia	Pepper, Tomato, Eggplant, Basil	Fennel, Mint
Strawberry	Spinach, Lettuce, bush bean, Borage	brassicas, Tomato, Pepper, Eggplant
Summer Savory	bean, Onion, Tomato, brassicas	Fennel, Cucumber
Sunflower	Corn, Cucumber, bean, squash	Potato, other sunflowers
Sweet Alyssum	Tomato, Pepper, Lettuce, brassicas, Zinnia	Fennel, rue
Sweet Marjoram	Tomato, Pepper, Basil, Eggplant	Fennel, Cucumber
Sweet Pea	Cosmos, larkspur, Snapdragon, bachelor's button	Fennel, Onion
Sweet Potato	bean, Dill, Thyme	squash
Swiss Chard	bean, brassicas, Onion	Corn
Tatsoi	Carrot, Lettuce, Radish, Beet	Strawberry, Fennel, other brassicas
Thai Basil	Tomato, Pepper, Eggplant, Marigold	Fennel, Sage
Thyme	brassicas, Strawberry, Tomato, Lavender	—
Tickseed	rudbeckia, Purple Coneflower, salvia, ornamental grasses, Yarrow	Fennel, brassicas
Tillage Radish	Corn, soybeans, tomatoes, squash, small grains	brassicas, turnips, Kale
Tomatillo	Pepper, Basil, Carrot	Fennel
Tomato	Basil, Marigold, Carrot, Parsley	Fennel, brassicas, Corn
Turnip	Pea, Onion, Celery	Tomato, Pepper
Watermelon	Corn, Radish, Nasturtium	Potato
White Clover	Corn, fruit trees, brassicas, squash, cucumbers	carrots, beets, onions
Winter Rye	soybeans, tomatoes, squash, pumpkins, brassicas	Corn, carrots, Lettuce, Spinach
Winter Savory	bean, Onion, brassicas, Rosemary	Fennel, Mint
Yardlong Bean	Corn, squash, Basil, Marigold	Onion, Garlic, Fennel
Yarrow	Purple Coneflower, salvia, rudbeckia, Lavender, ornamental grasses	Fennel, heavy feeders like roses
Zinnia	Tomato, Pepper, Cucumber, Basil	—
Zucchini	Corn, bean, Nasturtium, Borage	Potato, Fennel