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Companion Planting

Companion planting chart poster for organic gardening

Click to see our fantastic easy reference poster for Companion Planting!

West Coast Seeds offers its guidelines to companion planting to you as suggestions keeping in mind, each garden is unique and all of the factors should go into consideration while planning your garden, including but not limited too sun exposure, weather, ecology, pollinators, insect population, the soil, water supply and historical plant and harvest productivity and planning as well.  West Coast Seeds has significant conducted research into the companion planting guidelines and has defined the best possible results and reasons for each of our recommendations in our companion planting chart, below are a few thoughtful suggestions for you while planning your garden this year.

The benefits of Companion Planting include:

Minimizing Risk: Increases odds of higher yields even if one crop fails or you are effected by natural hardships such as weather, pests or disease, the overall yield of your plot may be increased by limiting the spread and avoiding a monoculture instead focus on polyculture or mimicing the best natural growth patterns and diversity. 

Crop Protection/ Shielding: Companion Planting can offer a more delicate plant shelter from weather such as wind or sun by growing aside another plant which can shield and protect while itself having a natural defence against the harsher conditions. 

Trap Cropping: Companion planting is also the ultimate organic pest management, you may keep away unwanted pests that may be attracted to one crop but repelled by the other and this will assit in protecting the otherwise attractive prey, this is referred to as trap cropping. 

Positive hosting: Predator recruitment typically in planting in proximity to plants which produce a surplus of nectar and pollen you can increase the population of beneficial insects that will manage your harmful pest population for you. 

Here are some basic guidelines for successful companion planting:

Agastache licorice mint for companion planting
Agastache
– Very attractive to bees. Plant a row away from the garden to lure cabbage moths away from Brassica crops. Do not plant near radishes.

Alyssum seeds for companion planting
Alyssum
– Very attractive to pollinators, and useful as a mulch to keep weeds down between rows. Alyssum provides shelter for ground beetles and spiders.

Grow Amaranth as a companion plant
Amaranth
– Plant with corn to shade the soil and retain water. Attracts predatory ground beetles.

Use Ammi in companion planting to attract beneficial insects
Ammi - This beautiful flower attracts lacewings, ladybird beetles, and parasitic wasps. Plant Ammi as a general pest control plant in your garden.

How to use asparagus in companion planting
Asparagus – Plant with asters, basil, cilantro, dill, cilantro, marigolds, nasturtiums, oregano, parsley, peppers, sage, and thyme. Asparagus repels nematodes that attack tomatoes, and tomatoes repel asparagus beetles.

Learn about companion planting with basil
Basil – Will improve vigour and flavour of tomatoes, planted side-by-side. Also good with asparagus, oregano, and peppers. Basil helps repel aphids, asparagus beetles, mites, flies, mosquitoes, and tomato horn worm.

Broad bean seeds for companion planting
Broad beans – Excellent for fixing nitrogen in the soil. Avoid planting near onions.

Bush beans and pole bean seeds for companion planting
Bush & Pole beans – All beans fix nitrogen in the soil. Plant with beets, Brassicas, carrots, celery, chard, corn, cucumber, eggplant, peas, potatoes, radish, and strawberries. Avoid planting near chives, garlic, leeks, and onions. Pole beans and beets stunt each other’s growth.

Soya beans are useful in companion planting
Soya beans – Good for fixing nitrogen, and acting as a mulch against weeds. Grow with corn. Soya beans repel Japanese beetles and chinch bugs.

Learn about companion planting with beets
Beets
– Beets add minerals to the soil. The greens are very good for the compost. Plant with bush beans, Brassicas, corn, garlic, kohlrabi, leeks, lettuce, and mint. Add cut mint leaves as a mulch for beets. Avoid planting beets near pole beans.

Use borage in your companion planting and to attract pollinators
Borage – Excellent all around companion plant. Borage deters tomato hornworm and cabbage moth caterpillars, and is particularly good planted near tomatoes and strawberries. Borage is very attractive to pollinators, so plant it around squash, melons, and cucumbers for improved pollination. It's also excellent for the soil and compost. Borage is deer-proof.

Broccoli, cabbage, cauliflower, kale, and other Brassicas can be used in companion planting
Brassicas (broccoli, Brussels sprouts, cabbage, cauliflower, collards, kale, kohlrabi, turnip) – All benefit from chamomile, dill, mint, rosemary, and sage. Avoid planting near eggplants, peppers, potatoes, or tomatoes.

Use buckwheat seeds in your companion planting
Buckwheat
– Fixes calcium in the soil, and makes an exceptionally good green manure plant. Buckwheat absorbs nutrients that are not available to other plants, and can then be composted or tilled under, releasing those nutrients in accessible forms. Buchwheat flowers are attractive to pollinators as well as beneficial predatory insects: hover flies, pirate bugs, tachinid flies, and ladybird beetles. It provides shelter for ground beetles.

Companion planting with Calendula seeds
Calendula – Repels a number of unwanted soil nematodes and asparagus beetles, but may attract slugs. Plant Calendula with tomatoes and asparagus. Calendula attracts a wide range of pollinators because it provides nectar over the whole growing season.

Carrots play a key role in companion planting
Carrots – Plant with beans, Brassicas, chives, leeks, lettuce, onions, peas, peppers, pole beans, radish, rosemary, sage, and tomatoes. Avoid planting with dill, parsnips, and potatoes. Carrots planted near tomatoes may have stunted roots, but will have exceptional flavour. Chives also benefit carrots.

Catnip seeds for companion planting
Catnip – Attracts pollinators (and cats!), and parasitic wasps. Catnip repels aphids, asparagus beetles, Colorado potato beetles, and squash bugs.

Celery and celeriac in the companion planting garden
Celery – Good partner for beans, Brassicas, cucumber, garlic, leek, lettuce, onion, and tomatoes.

Chamomile can be used in companion planting
Chamomile – Attracts hoverflies and parasitic wasps. Plant near onions to improve their flavour.

Chervil can repel slugs from your companion planting garden
Chervil – Excellent companion for Brassicas, lettuce, and radishes, but does best in part shade. Chervil helps to repel slugs and attract parasitic wasps.

Chives seeds for companion planting
Chives – Improves the flavour of carrots and tomatoes. A companion plant for Brassicas. Helps to repel aphids, carrot rust fly, and Japanese beetles. Avoid planting near beans and peas.

Shasta daisy Chrysanthemums can be used in companion planting
Chrysanthemum – White flowering mums repel Japanese beetles. All Chrysanthemums are attractive to tachinid flies and parasitic wasps.

Certified organic cilantro seeds for companion planting
Cilantro – Repels aphids, potato beetles, and spider mites.

Clover makes an excellent cover crop for companion planting
Clover – Attracts many beneficials and builds the soil. Helps fight cabbage worms, and increases the number of predatory ground beetles.

Collards, like kale, can be useful in companion planting
Collards – Plant near tomatoes, which repel the flea beetles that so often look for collards to eat.

Use coreopsis in your companion planting to attract beneficial insects
Coreopsis - This plant attracts pollinators, but also hoverflies, soldier bugs, and tachinid flies.

How to use corn seeds in companion planting
Corn – Companion to beans, beets, cucumber, dill, melons, parsley, peas, potato, soya beans, squash, and sunflower. Avoid planting next to celery or tomatoes. Amaranth makes a great mulch between rows by competing with weeds and conserving ground moisture.

Plant Cosmos flowers in your companion planting garden
Cosmos - This annual provides food and habitat to parasitic wasps, tachinid flies, lacewings, hoverflies, minute pirate bugs, spiders, ladybird beetles, big-eyed bugs, damsel bugs, and other predatory insects. Cosmos can be direct sown from early March to the end of June in our region so that it blooms continuously throughout the summer. Deadhead spent flowers to extend each plant's bloom time.

Cucumber seeds for companion planting
Cucumber – Plant beside asparagus, beans, Brassicas, celery, corn, dill, kohlrabi, lettuce, onion, peas, radish, and tomatoes. Avoid planting near potatoes and sage. Both corn and sunflowers can act as a trellis for cucumbers to good effect. Dill will help cucumbers by attracting predatory insects, and nasturtiums will improve the flavour and growth of cucumbers.

Use dill in your companion planting garden to attract beneficial insects
Dill – Dill improves the health of cabbages and other Brassicas, and is a very good companion for corn, cucumbers, lettuce, and onions. Avoid planting near carrots and tomatoes. Dill attracts ladybird beetles, parasitoid wasps, hoverflies, bees, and garden spiders, making it one of the most useful companion planting candidates.

Echinacea coneflowers make excellent companion plants
Echinacea - These perennial coneflowers attract hoverflies and parasitoid wasps, so they're useful for pest control in companion plantings.

Eggplant seeds for companion planting
Eggplant – A good companion for amaranth, beans, marigolds, peas, peppers, spinach, and thyme. Do not plant eggplants near fennel.

Fennel seeds for companion planting
Fennel – Not a companion for any garden food plant, fennel will actually inhibit growth in bush beans, kohlrabi, tomatoes, and others. Plant it, but keep it out of the veggie garden. Fennel attracts hoverflies, ladybird beetles, parasitic wasps, and tachinid flies, so it's a kind of beneficial insect magnet.

Gaillardia is a great flower choice for companion planting
Gaillardia - This flower blooms over a very long period in summer, providing a rich source of nectar for a host of pollinators.

Certified organic garlic for companion planting
Garlic – Planting garlic near roses will help to repel aphids. Because of its sulfur compounds, it may also help repel whiteflies, Japanese beetles, root maggots, carrot rust fly, and other pests. Garlic, made into a tea, or spray, will act as a systemic pesticide, drawing up into the cells of the plants. It’s a good companion for beets, Brassicas, celery, lettuce, potatoes, strawberries, and tomatoes. Avoid planting it near peas or beans of any kind.

Iberis is a good early source of nectar for pollinators
Iberis - This early flowering plant provides nectar for pollinators before many others, and it attracts hoverflies and ground beetles.

Kohlrabi has a place in companion planting
Kohlrabi – A worthy companion for beets, Brassicas, cucumbers, and onions. Avoid planting near peppers, pole beans, strawberries, and tomatoes.

Leek seeds for companion planting
Leeks – Grow with beets, carrot, celery, onions, and spinach. Avoid planting near beans and peas. Leeks help repel carrot rust flies.

Certified organic lettuce seeds for companion planting
Lettuce – Good companions for beets, Brassicas, carrot, celery, chervil, cucumbers, dill, garlic, onions, radish, spinach, squash, and strawberries.

Lovage is a tall herb that attracts beneficial insects
Lovage - Use lovage to attract parasitoid wasps and ground beetles. Oh, and you can cook with it, too.

No companion planting is complete without marigold seeds
Marigold – French Marigolds (Tagetes patula) produce chemicals that repel whitefly, Mexican bean beetles, root knot nematodes, and root lesion nematodes. Avoid planting them near beans. Mexican Marigolds (T. minuta) have the same effect, and may repel rabbits. At the same time, they attract hoverflies and parasitoid wasps.

Melon seeds for companion planting
Melon – Great companions for corn, marigolds, nasturtiums, pumpkin, radish, squash, and sunflowers. Avoid planting near potatoes. Melon leaves are full of calcium, so they’re good for the compost heap.

Plant mint seeds in your companion planting garden
Mint – Mint attracts earthworms, hoverflies and predatory wasps, and repels cabbage moths, aphids, and flea beetles. Mint is invasive, so it may be better to use cut mint as a mulch around Brassicas, or to restrain it in containers around the vegetable garden. Avoid planting near parsley.

Monarda is also known as bee balm and bergamot
Monarda (Bergamot) - This plant blooms in late summer, and is very attractive to bees, parasitic wasps, parasitic flies, and hummingbirds.

Nasturtium seeds for companion planting and natural pest control
Nasturtium – These plants make a good trap crop for aphids, and they deter whiteflies, cucumber beetles, squash beetles, Colorado potato beetles, and Mexican bean beetles. It is a good companion for Brassicas, cucumbers, melons, radishes, and tomatoes. Because the grow close to the ground, nasturtiums provide good cover for ground beetles and spiders. The flowers attract a variety of pollinators, and is good for the bees.

Oats in the companion planting garden
Oats – They grow very quickly for quick tilling to add organic matter to beds, and work well when planted with clover or vetch. An excellent source of green matter for the compost.

Control pests naturally with onion seeds in your companion planting garden
Onions – Plant chamomile and summer savory near onions to improve their flavour. Onions also work well alongside beets, Brassicas, carrots, dill, kohlrabi, leeks, lettuce, strawberries and tomatoes. Don’t plant onions near asparagus, or peas of any kind. Onions help to repel the carrot rust fly.

Plant oregano and marjoram in your companion planting garden
Oregano & Marjoram – Oregano is particularly good for repelling cabbage moths, and it can be planted between rows of Brassicas for this purpose. Also good around asparagus and basil.

Flat leaf or curly parsley are both useful companion plants
Parsley – Parsley likes asparagus, carrots, chives, corn, onions, and tomatoes. The leaves can be sprinkled on asparagus to repel asparagus beetles, and around roses, to improve their scent. Let some of your parsley go to bloom tol attract hoverflies and predatory wasps. Don’t plant it near mint.

Plant pea seeds in your companion planting garden
Peas – Superb companions for beans, carrots, celery, corn, cucumber, eggplant, parsley, peppers. potatoes, radish, spinach, strawberries and turnips. Avoid planting peas near onions.

Peppers are useful companion plants
Peppers – Pepper plants make good neighbours for asparagus, basil, carrots, cucumbers, eggplant, endive, oregano, parsley, rosemary, squash, Swiss chard, and tomatoes. Never plant them next to beans, Brassicas, or fennel.

Grow better potatoes with companion planting
Potato – Bush beans, Brassicas, carrots, celery, corn, garlic, marigolds, onions, and peas all do well planted near potatoes. Avoid planting potatoes near asparagus, cucumber, kohlrabi, melons, parsnips, rutabaga, squash, sunflower, and turnips.

Companion planting with radish seeds
Radish – Plant radishes near beans, beets, celeriac, chervil, cucumber, lettuce, mint, parsnip, peas, spinach, squash, and tomatoes. Avoid planting near agastache or potatoes. It is said that planting 3 or 4 icicle radishes around the mound where you plant squash, and allowing them to grow and bloom, will prevent most pests of squash and cucumber.

Rosemary is a useful companion plant
Rosemary – Rosemary is a good companion for beans, Brassicas, and carrots. Rosemary repels cabbage moths, Mexican bean beetles, and carrot rust flies.

Plant Rudbeckia to attract beneficial insects
Rudbeckia - All varieties of Rudbeckia are attractive to hoverflies and parasitoid wasps.

Use fall rye to control weeds in your companion planting garden
Rye
– Fall rye gives off a chemical that inhibits the germination of weed seeds. Planted twice in a row, it can choke out several tough weed species for good. It produces masses of useful organic matter for tilling under or adding to the compost.

Sage is a good herb to use for companion planting
Sage – Sage repels both the cabbage moth and the carrot rust fly, so it’s a great all around companion plant in the vegetable garden. Do not, however, plant it near cucumbers, which are sensitive to aromatic herbs.

Scabiosa is useful for companion planting
Scabiosa - This plant is naturally attractive to hoverflies and predatory tachanid flies, making it very useful for organic companion planting.

Spinach can be helped by companion planting
Spinach – A good companion for Brassicas, eggplants, leeks, lettuce, peas, radish, and strawberries, particularly. Don’t plant spinach near potatoes.

Improve your squash harvest with these companion planting tips
Squash – Companions: corn, lettuce, melons, peas, and radish. Avoid planting near Brassicas or potatoes. Borage is said to improve the growth and flavour of squash. Marigolds and nasturtium repel numerous squash pest insects.

Better strawberries with companion planting
Strawberry – These little plants respond strongly to nearby plants. Couple them with beans, borage, garlic, lettuce, onions, peas, spinach, and thyme. Avoid Brassicas, fennel, and kohlrabi.

Summer savory is an important plant for companion planting
Summer Savory – This herb attracts honeybees, and repels cabbage moths. Planting it near beans and onions will improve the flavour of both.

Certified organic sunflower seeds for companion planting
Sunflower – Sunflowers planted near rows of corn are said to increase yields. Aphids may be herded by ants onto sunflowers without causing the plants any harm.

Healthy Swiss chard plays a role in companion planting
Swiss chard – Beans, Brassicas, and onions make the best companions for chard.

Creeping thyme and Eglish thyme are both good candidates for companion planting
Thyme – An all around beneficial plant for the garden, thyme is particularly worth planting near Brassicas, as it repels cabbage moths, and strawberries, as it enhances flavour.


Tithonia - Plant this so-called Mexican Torch to attract parasitoid wasps, parasitic flies, and soldier bugs to your garden. They will act as a beacon of natural pest control.

Use companion planting to grow naturally improved tomatoes
Tomatoes – Another sensitive plant when it comes to companions, tomatoes benefit from asparagus, basil, beans, borage, carrots, celery, chives, collards, cucumber, garlic, lettuce, marigold, mint, nasturtium, onion, parsley, and peppers. Avoid planting alongside Brassicas and dill. Corn will attract tomato pests, and kohlrabi will stunt tomatoes’ growth. Potatoes may spread blight to tomatoes, so keep them apart. Do no plant tomatoes near walnut trees.

Even turnips can be improved by companion planting
Turnip – Turnips are easygoing, but benefit from mint and pea companions.

Plant hairy vetch to fix nitrogen and attract beneficial insects
Vetch – Vetch has long roots that fix nitrogen in the soil, and provide masses of organic matter for tilling under. Do not let vetch go to seed, as it will come back strongly. The seeds are toxic to chickens.

In companion planting, yarrow is a very important plant
Yarrow – Its scent repels aphids, but attracts hoverflies, lady beetles, and wasps that prey on garden grubs. The leaves and stems of yarrow contain enzymes that break down rapidly, so it can be added to the compost raw or as a tea to accelerate the heap.
 

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Comments

Finally! All we need to know on one page. Enough detail without being too much to read at one go. Many thanks!
Posted by: Destiny  
Wonderful article... I have tried to follow the plantings but never really knew what the particular benefits were for rhe plant combos!! Love your seeds and info!!!
Posted by: Norma  
Great information in this article. Thanks. Marg
Posted by: Margaret