Companion Planting

The theory of companion planting is by placing beneficial plants together they help each other grow.
Some ways companion plants help each other are:

  • Taller plants can provide shade for sun-sensitive shorter plants.
  • Vining plants cover the ground below taller plants for weed control, or to support vining plants.
  • Companion plants discourage pest, for instance onions repel some pests,
    while other companions, like marigolds, lure pest away from desirable plants.
  • Companion planting can attract beneficial insects to the garden, and improve flavor to some fruits and vegetables.

Below is a beginner’s guide to companion planting.   20141016_171506

Basil
Plant near: most garden crops
Keep away from: rue
Comments: improves the flavor and growth of garden crops, especially tomatoes and lettuce. Repels mosquitoes

Beans, Bush
Plant near: beets, cabbage, carrots, catnip, cauliflower, corn, cucumbers, marigolds, potatoes, savory, strawberries.
Keep away from: fennel, garlic, leeks, onions, shallots.
Comments: potatoes and marigolds repel Mexican bean beetles. Catnip repels flea beetles.

Beans, Pole
Plant near: corn, marigolds, potatoes, radishes.
Keep away from:
beets, garlic, kohlrabi, leeks, onions, shallots
Comments:
same as for bush beans.

Beets
Plant near: broccoli, brussel sprouts, bush beans, cabbage, cauliflower, chard, kohlrabi, onions
Keep away from:
mustard, pole beans

Borage
Plant near:  squash, strawberries, tomatoes
Keep away from:  
Spreads by seed!!
Comments:
repels tomato worms. Improves flavor and growth of companions.

Broccoli and Brussels Sprouts
Plant near: beets, buckwheat, calendula, carrots, chamomile, dill, hyssop, marigolds, mints, nasturtiums, onions, rosemary, sage, thyme, wormwood.
Keep away from: strawberries
Comments: marigolds repel cabbage moths. Nasturtiums repel aphids.

Cabbage and Cauliflower
Plant near: broccoli, brussels sprouts, celery, chard, spinach, tomatoes.
Keep away from: strawberries
Comments: tomatoes and celery repel cabbage worms.

Cantaloupe
Plant near: corn
Keep away from:

Carrots
Plant near: cabbage, chives, early potatoes, leeks, lettuce, onions, peas, radishes, rosemary, sage, salsify, wormwood.
Keep away from:
Comments: onions, leeks, and wormwood repel carrot flies

Chives
Plant near: apples, berries, carrots, grapes, peas, roses, tomatoes.
Keep away from:
Comments: Deters aphids and Japanese beetles. Improves flavor & growth of companions.

Corn
Plant near: beans, cucumbers, early potatoes, melons, peas, pumpkins, soybeans, squash.
Keep away from:
Comments: soybeans deter chinch bugs.

Cucumbers
Plant near: beans, cabbage, corn, early potatoes, radishes, sunflowers.
Keep away from: late potatoes
Comments: Radishes deter cucumber beetles. Cucumbers encourage blight in late potatoes.

Dill
Plant near: broccoli, brussels sprouts, cabbage, cauliflower, cucumber, lettuce, onions
Keep away from: carrots
Comments: Improves flavor and growth of cabbage family plants.

Eggplant
Plant near: green beans, peppers, potatoes, tomatoes
Keep away from:
Comments: green beans deter Colorado potato beetles.

Garlic
Plant near: cabbage, cane fruits, fruit trees, roses, tomatoes
Keep away from: peas, beans
Comments: deters Japanese beetles and aphids. A garlic oil spray deters onion flies, aphids, and ermine moths. A garlic tea helps repel late potato blight.

Kale
Plant near:
aromatic herbs, buckwheat, cabbage family, marigolds, nasturtiums
Keep away from:
pole beans, strawberries

Kohlrabi
Plant near:
cabbage/cauliflower companions (except tomatoes)
Keep away from:
fennel, pole beans, tomatoes
Comments:
kohlrabi stunts tomatoes

Lettuce
Plant near: beets, carrotsparsnips, radishes, strawberries
Keep away from: cabbage family
Comments: lettuce tenderizes summer radishes.

Marigolds
Plant near:
all garden crops
Keep away from:
Comments:
stimulates vegetable growth and deters bean beetles, aphids, potato bugs, squash bugs, nematodes, and maggots.

Marjoram
Plant near:
all garden crops
Keep away from:
Comments:
stimulates vegetable growth.

Mustard
Plant near:
alfalfa cover crops, fruit trees, grapes, legumes
Keep away from:
Comments:
stimulates growth of companion plants.

Nasturtiums
Plant near:
apples, beans, cabbage family, greenhouse crops, potatoes, pumpkins, radishes, squash
Keep away from:
Comments:
repels aphids, potato bugs, squash bugs, striped pumpkin beetles, and Mexican bean beetles and destroys white flies in greenhouses.

Onions
Plant near:
beets, cabbage family, carrots, chamomile, lettuce, parsnips
Keep away from:
beans, peas
Comments:
deters most pests, especially maggots.

Oregano
Plant near:
all garden crops
Keep away from:
Comments:
deters many insect pests.

Parsley
Plant near:
corn, roses, tomatoes
Keep away from:

Parsnips
Plant near:
onions, radishes, wormwood
Keep away from:
Comments:
onions and wormwood help keep root maggots from parsnips.

Peas
Plant near:
beans, carrots, corn, cucumbers, early potatoes, radishes, turnips
Keep away from:
garlic leeks, onions, shallots

Peppers
Plant near:
basil, carrots, eggplant, onions, parsley, tomatoes
Keep away from:
fennel, kohlrabi

Potatoes
Plant near:
basil, beans, cabbage family, corn, eggplant, flax, hemp, marigolds, peas, squash
Keep away from:
apples, birch, cherries, cucumbers, pumpkins, raspberries, sunflowers, tomatoes, walnuts
Comments:
Basil deters potato beetles. Marigolds (dug into crop soil) deter nematodes,hemp deters phytophthora infestans

Radishes
Plant near:
chervil, cucumbers, lettuce, melons, peas, nasturtiums, root crops
Keep away from:
hyssop
Comments:
radishes deter cucumber beetles. Chervil makes radishes hot. Lettuce helps make radishes tender. Nasturtiums improve radishes’ flavor.

Rosemary
Plant near:
beans, cabbage, carrots
Keep away from:
Comments:
repels bean beetles, cabbage moths, and carrot flies.

Sage
Plant near:
cabbage family, carrots, tomatoes
Keep away from:
cucumbers
Comments:
deters cabbage moths and carrot flies. Invigorates tomato plants.

Soybeans
Plant near:
corn, potatoes
Keep away from:
Comments:
chokes weeds and enriches soil.

Spinach
Plant near:
celery, cauliflower, eggplant, strawberries
Keep away from:

Strawberries
Plant near:
borage, bush beans, lettuce, pyrethrum, spinach
Keep away from:
cabbage family

Sunflowers
Plant near:
cucumbers
Keep away from:
potatoes
Comments:
can provide a trellis and shelter for shade-loving cucumbers.

Swiss Chard
Plant near:
bush beans, kohlrabi, onions
Keep away from:
pole beans

Tarragon
Plant near:
all garden crops
Keep away from:
Comments:
improves vegetables’ flavor and growth.

Thyme
Plant near:
all garden crops
Keep away from:
Comments:
deters cabbage moths.

Tomatoes
Plant near:
asparagus, basil, cabbage family, carrots, gooseberries, mustard, parsley, onions, rosemary, sage, stinging nettles
Keep away from:
fennel, kohlrabi, potatoes, walnuts

Turnips and Rutabagas
Plant near:
peas
Keep away from:
knotweed, mustard
Comments:
mustard and knotweed inhibit the growth of turnips and rutabagas!

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