companion planting.

[jaybex]

Jaxom, thanx for the links, really helpful.

[sewer rat]

Jaybex
Can't mail you as yet - have sent you a PM to let you know what to do

[jaybex]

thanx Rat, have changed it now.

[Geordie]

I have tried to combine my (albeit limited) knowledge of companion planting to use herbs as well as vegetables. I have left out the more common ones and tried to give you some food for thought....i also need to post it over 2 or 3 entries as their is a word limit for each post.

COMPANION PLANTING

Many plants have natural substances in their roots, flowers, leaves etc. that can alternately repel (anti-feedents) and/or attract insects depending on your needs. In some situations they can also help enhance the growth rate and flavour of other varieties. Experience shows us that using companion planting through out the landscape is an important part of integrated pest management. In essence companion planting helps bring a balanced eco-system to your landscape, allowing nature to do its' job.
By using companion planting, many gardeners find that they can discourage harmful pests without losing the beneficial allies. There are many varieties of herbs, flowers, etc. that can be used for companion plants. Be open to experimenting and find what works for you. Some possibilities would be using certain plants as a border, backdrop or interplanting in your flower or vegetable beds where you have specific needs. Use plants that are native to your area so the insects you want to attract already know what to look for! Plants with open cup shaped flowers are the most popular with beneficial insects.

Companion planting can combine beauty and purpose to give you an enjoyable, healthy environment. Have fun, let your imagination soar. There are many ways you can find to incorporate these useful plants in your garden, orchard, flower beds etc.
Following is a basic plant guide (with some tips) to help you "work in harmony with nature."
Note: this guide is not intended to solve garden problems as the suggestions may work differently in various situations or not at all. Don't let that discourage you from giving the ideas a try! What works for some may not work for others and vice versa. Experimenting is the only way we can gain new insight for our own individual gardens.

PLANT GUIDE

ALFALFA: Perennial that roots deeply. Fixes the soil with nitrogen, accumulates iron, magnesium, phosphorous and potassium. Withstands droughts with it's long taproot and can improve just about any soil! Alfalfa has the ability to break up hard clay soil and can even send its' roots through rocks! Now that is a tenacious plant! Alfalfa is practically pest and disease free. It needs only natural rainfall to survive.

AMARANTH: A tropical annual that needs hot conditions to flourish. Good with sweet corn, it's leaves provide shade giving the corm a rich, moist root run. Host to predatory ground beetles. Eat the young leaves in salads.

ANISE: Liquorice flavoured herb, good host for predatory wasps which prey on aphids and it is also said to repel aphids. Deters pests from brassicas by camouflaging their odour. Improves the vigour of any plants growing near it. Used in ointments to protect against bug stings and bites. Good to plant with coriander.

ARTEMISIAS: (See Wormwood)

BASIL: Plant with tomatoes to improve growth and flavour. Basil can be helpful in repelling thrips. It is said to repel flies and mosquitoes. Do not plant near rue.

BAY LEAF: A fresh leaf bay leaf in each storage container of beans or grains will deter weevils and moths. Sprinkle dried leaves with other deterrent herbs in garden as natural insecticide dust. A good combo: Bay leaves, cayenne pepper, tansy and peppermint.For ladybug invasions try spreading bay leaves around in your house anywhere they are getting in and they should leave.

BEANS: All beans enrich the soil with nitrogen fixed form the air. In general they are good company for carrots, brassicas, beets, and cucumbers. Great for heavy nitrogen users like corn and grain plants. French Haricot beans, sweet corn and melons are a good combo. Keep beans away from the alliums.

BEE BALM (Oswego, Monarda): Plant with tomatoes to improve growth and flavour. Great for attracting beneficials and bees of course. Pretty perennial that tends to get powdery mildew.

BEET: Good for adding minerals to the soil. The leaves are composed of 25% magnesium. Companions are lettuce, onions and brassicas.

BORAGE: Companion plant for tomatoes, squash and strawberries. Deters tomato hornworms and cabbage worms. One of the best bee and wasp attracting plants. Adds trace minerals to the soil and a good addition the compost pile. Borage may benefit any plant it is growing next to via increasing resistance to pests and disease. After you have planned this annual once it will self seed.

BRASSICA: Benefit from chamomile, peppermint, dill, sage, and rosemary. They need rich soil with plenty of lime to flourish.

BUCKWHEAT: Accumulates calcium and can be grown as an excellent cover crop. Attracts hoverflies in droves. (Member of the brassica family.)

CARAWAY: Good for loosening compacted soil with it's deep roots. Tricky to establish. The flowers attract a number of beneficial insects.

CATNIP: Deters flea beetles, aphids, Japanese beetles, squash bugs, ants and weevils. We have found it repels mice quite well: mice were wreaking havoc in our outbuildings, we spread sprigs of mint throughout and the mice split! Use sprigs of mint anywhere in the house you want deter mice and ants. Smells good and very safe.

CHAMOMILE, GERMAN: Annual. Improves flavour of cabbages, cucumbers and onions. Host to hoverflies and wasps. Accumulates calcium, potassium and sulphur, later returning them to the soil. Increases oil production from herbs. Leave some flowers unpicked and German chamomile will reseed itself. Roman chamomile is a low growing perennial that will tolerate almost any soil conditions. Both like full sun. Growing chamomile of any type is considered a tonic for anything you grow in the garden.

CHERVIL: Companion to radishes for improved growth and flavour. Keeps aphids off lettuce. Likes shade.

CHIVES: Improves growth and flavour of carrots and tomatoes . Chives may drive away Japanese beetles and carrot rust fly. Planted among apple trees it may help prevent scab. A tea of chives may be used on cucumbers to prevent downy mildew.
Chive tea - To make: Put a bunch of chopped chives in a heat proof glass container, cover with boiling water. Let this sit until cool, strain and spray as often as two to three times a week.

CHRYSANTHEMUMS: C. coccineum kills root nematodes. (the bad ones) It's flowers along with those of C. cineraruaefolium have been used as botanical pesticides for centuries. (i.e. pyrethrum) White flowering chrysanthemums repel Japanese beetles. To the right is a picture of the painted daisy from which pyrethrum is extracted.

CLOVER: Long used as a green manure and plant companion. Attracts many beneficials. Useful planted around apple trees to attract predators of the woolly aphid.

COMFREY: Accumulates calcium, phosphorous and potassium. Likes wet spots to grow in. Traditional medicinal plant. Good trap crop for slugs.
With its' high levels of potash comfrey tea can be used as an excellent fertilizer for tomato, pepper, cucumber and potato plants. The smell while it is "cooking" is strong. Pick a good sized handful of leaves. Place them in a container with enough water to cover the leaves. Cover and let this cook for 4 weeks in cool weather or 2 weeks in hot weather. Then squeeze the leaves to extract as much juice as possible Strain and use at a rate of 1/3 cup 0f comfrey juice to one gallon of water Use as a foliar feed and soil drench around the plants. Put the solid wastes into the compost pile.

CORIANDER: Repels aphids, spider mites and potato beetle. A tea from this can be used as a spray for spider mites. A partner for anise.

COSTMARY: This 2-3 foot tall perennial of the chrysanthemum family helps to repel moths.

DAHLIAS: These beautiful, tuberous annuals that can have up to dinner plate size flowers repels nematodes!

DILL: Improves growth and health of cabbage. Do not plant near carrots. Best friend for lettuce. Attracts hoverflies and predatory wasps. Repels aphids and spider mites to some degree. Also may repel the dreaded squash bug! (scatter some good size dill leaves on plants that are suspect to squash bugs, like squash plants, yeah that's the ticket.) Dill goes well with onions and cucumbers. Dill does attract the tomato horn worm so it would be useful to plant it somewhere away from your tomato plants to keep the destructive horn worm away from them. We like to plant it for the swallowtail butterfly caterpillars to feed on. Even their caterpillars are beautiful.

[Geordie]

ELDERBERRY: A spray made from the leaves can be used against aphids, carrot root fly, cuke beetles and peach tree borers. Put branches and leaves in mole runs to banish them. Yes, it works! Elder leaves also have fungicidal properties and may be useful against mildew and blackspot diseases.
To make: simmer 8 ounces of leaves in 16 ounces of water for 30 minutes. Stir this thoroughly, then strain. Take 16 ounces of warm water and mix with 1 tablespoon of castille soap. Add soap mixture to the elder water, spray as needed. Note: Set your sprayer to a coarse or large droplet setting as this mixture will tend to plug a fine setting.

FLAX: Plant with carrots, and potatoes. Flax contains tannin and linseed oils which may offend the Colorado potato bug. Flax is an annual from 1-4 feet tall with blue or white flowers that readily self sows. We have quite a few flax plants return year after year here in zone 5.

GARLIC: Plant near roses to repel aphids. Accumulates sulphur: a naturally occurring fungicide which will help in the garden with disease prevention. Garlic is systemic in action as it is taken up the plants through their pores and when used as a soil drench is also taken up by the roots. Has value in offending codling moths, Japanese beetles, root maggots, snails, and carrot root fly. Researchers have observed that time-released garlic capsules planted at the bases of fruit trees actually kept deer away! Hey, worth a try! Concentrated garlic sprays have been observed to repel and kill whiteflies, aphids and fungus gnats among others with as little as a 6-8% concentration! It is safe for use on orchids too.
May also help to repel rabbits! Never use oils sprays on Blue Spruce as it will remove the blue waxy coating on the needles! Because garlic contains naturally occurring sulphur it also acts as an antibacterial agent and fungus preventative. Aphids, cabbage caterpillars, grasshoppers, June bugs, leafhoppers, mites, squash bugs, slugs and whiteflies. May also help to repel rabbits! Never use oils sprays on Blue Spruce as it will remove the blue waxy coating on the needles! Because garlic contains naturally occurring sulphur it also acts as an antibacterial agent and fungus preventative.

Geranium: -Repels cabbage worms and Japanese beetles, plant around grapes, roses, corn, and cabbage.

GOPHER PURGE: Deters gophers, and moles.

HORSERADISH: Plant in containers in the potato patch to keep away Colorado potato bugs. There are some very effective insect sprays that can be made with the root. Use the bottomless pot method to keep horseradish contained. Also repels Blister beetles. We have observed that the root can yield anti-fungal properties when a tea is made from it.Horseradish Tea: You can also make a tea from horseradish roots to use as a preventative spray for fungal diseases. This is especially useful against brown rot in apple trees. The white flesh of the horseradish root also contains significant amounts of calcium, magnesium and vitamin C.
To make: Process one cup of roots in food processor till finely chopped. Combine this with 16 ounces of water in a glass container and let soak for 24 hours. Strain liquid, discard the solids. Now mix the liquid with 2 pints of water and spray.

HOREHOUND: (Marrubium Vulgare) like many varieties in the mint family, the many tiny flowers attract Braconid and Icheumonid wasps, and Tachinidin and Syrid flies. The larval forms of these insects parasitize or otherwise consume many other insects pests. It grows where many others fail to thrive and can survive harsh winters. Blooms over a long season, attracting beneficial insects almost as long as you are likely to need them. For best results use horehound directly as a companion plant. Stimulates and aids fruiting in tomatoes and peppers.

HYSSOP: Companion plant to cabbage and grapes, deters cabbage moths and flea beetles. Do not plant near radishes. Hyssop may be the number one preference among bees and some beekeepers rub the hive with it to encourage the bees to keep to their home. It is not as invasive as other members of the mint family making it safer for interplanting.

KELP: When used in a powder mixture or tea as a spray, this versatile seaweed will not only repel insects but feed the vegetables. In particular we have observed that kelp foliar sprays keep aphids away when used as a spray every 8 days before and during infestation times. If you have access to seaweed, use it as a mulch to keep slugs away.

LAMIUM: This will repel potato bugs- a big problem for many gardeners!

LARKSPUR:An annual member of the Delphinium family, larkspur will attract Japanese beetles. They dine and die! Larkspur is poisonous to humans too!

LAVENDER: Repels fleas and moths. Prolific flowering lavender nourishes many nectar feeding and beneficial insects. Use dried sprigs of lavender to repel moths. Start plants in winter from cuttings, setting out in spring.

LEEKS: Use leeks near carrots, celery and onions which will improve their growth. Leeks also repel carrot flies.

LEMON BALM: Sprinkle throughout the garden in an herbal powder mixture to deter many bugs. Lemon balm has citronella compounds that make this work: crush and rub the leaves on your skin to keep mosquitoes away! Use to ward off squash bugs!

LOVAGE: Improves flavour and health of most plants. Good habitat for ground beetles. A large plant, use one planted as a backdrop. Similar to celery in flavour.

MARIGOLDS: (Calendula): Given a lot of credit as a pest deterrent. Keeps soil free of bad nematodes; supposed to discourage many insects. Plant freely throughout the garden. The marigolds you choose must be a scented variety for them to work. One down side is that marigolds do attract spider mites and slugs.
·French Marigold (T. Patula) has roots that exude a substance which spreads in their immediate vicinity killing nematodes. For nematode control you want to plant dense areas of them. There have been some studies done that proved this nematode killing effect lasted for several years after the plants were These marigolds also help to deter whiteflies when planted around tomatoes and can be used in greenhouses for the same purpose. Whiteflies hate the smell of marigolds.
·Mexican marigold (T. minuta) is the most powerful of the insect repelling marigolds and may also overwhelm weed roots such as bind weed! It is said to repel the Mexican bean beetle and wild bunnies! Be careful it can have an herbicidal effect on some plants like beans and cabbage.

MARJORAM: As a companion plant it improves the flavour of vegetables and herbs. Sweet marjoram is the most commonly grown type.

MINT: Deters white cabbage moths, ants, rodents, flea beetles, fleas, aphids and improves the health of cabbage and tomatoes. Use cuttings as mulch around members of the brassica family. It attracts hoverflies and predatory wasps. Earthworms are quite attracted to mint plantings. Be careful where you plant it as mint is an incredibly invasive perennial. We have found that placing mint (fresh or dried) where mice are a problem is very effective in driving them off!

MOLE PLANTS: (castor bean plant) Deter moles and mice if planted here and there throughout the garden. Drop a seed of this in mole runs to drive them away. This is a poisonous plant.

MORNING GLORIES: They attract hoverflies. Plus if you want a fast growing annual vine to cover something up morning glory is an excellent choice
NASTURTIUMS: Plant as a barrier around tomatoes, radishes, cabbage, cucumbers, and under fruit trees. Deters woolly aphids, whiteflies, squash bug, cucumber beetles and other pests of the cucurbit family. Great trap crop for aphids (in particular the black aphids) which it does attract, especially the yellow flowering varieties. Likes poor soil with low moisture and no fertilizer. It has been the practice of some fruit growers that planting nasturtiums every year in the root zone of fruit trees allow the trees to take up the pungent odour of the plants and repel bugs. It has no taste effect on the fruit. A nice variety to grow is Alaska which has attractive green and white variegated leaves. The leaves, flowers and seeds are all edible and wonderful in salads

NETTLES, STINGING: The flowers attract bees. Sprays made from these are rich in silica and calcium. Invigorating for plants and improves their disease resistance. Leaving the mixture to rot, it then makes an excellent liquid feed. Comfrey improves the liquid feed even more. Hairs on the nettles' leaves contain formic acid which "stings" you.

[Geordie]

OPAL BASIL: An annual herb that is pretty, tasty and said to repel hornworms!

PEAS: Peas fix nitrogen in the soil. Plant next to corn and they will provide extra nitrogen. Corn is a heavy feeder so this is a great combination!

PARSLEY: Plant among and sprinkle on tomatoes, and asparagus. Use as a tea to ward off asparagus beetles. Attracts hoverflies. Let some go to seed to attract the tiny parasitic wasps. Parsley increases the fragrance of roses when planted around their base.

PEPPERMINT: Repels white cabbage moths, aphids and flea beetles. It is the menthol content in mints that acts as an insect repellent. Bees and other good guys love it.

PEPPERS, HOT: Chilli peppers have root exudates that prevent root rot and other Fusarium diseases. Plant anywhere you have these problems. Teas made from hot peppers can be useful as insect sprays.

PENNYROYAL: Repels fleas. Many people are now using pennyroyal as an alternative lawn. The leaves when crushed and rubbed onto your skin will repel chiggers, flies, gnats, mosquitoes and ticks. Smells nice too!

PETUNIAS: They repel the asparagus beetle, leafhoppers, certain aphids, tomato worms, Mexican bean beetles and general garden pests. A good companion to tomatoes, but plant everywhere. The leaves can be used in a tea to make a potent bug spray.

POACHED EGG PLANT: Grow poached egg plant with tomatoes, they will attract hover flies and hover flies eat aphids.

PURSLANE: This edible weed makes good ground cover in the corn patch. Use the stems, leaves and seeds in stir-frys. Pickle the green seed pod for caper substitutes.

RADISH: Plant radishes with your squash plants. Radishes may protect them from squash borers! Anything that will help prevent this is worth a try. Planting them around corn and letting them go to seed will help fight corn borers.

ROSEMARY: Companion plant to cabbage, beans, carrots and sage. Deters cabbage moths, bean beetles, and carrot flies. Use cuttings to place by the crowns of carrots for carrot flies. Zones 6 and colder can over winter rosemary as houseplants or take cuttings.

RUE: Deters Japanese beetles in roses and raspberries. To make it even more effective with Japanese beetles: crush a few leaves to release the smell. Repels flies and has helped repel cats for us. Some say you should not plant it near cabbage, basil or sage. A pretty perennial with bluish-gray leaves. May be grown indoors in a sunny window. Rue can cause skin irritation!

SAGE: Use as a companion plant with broccoli, cauliflower, rosemary, cabbage, and carrots to deter cabbage moths, beetles, black flea beetles and carrot flies. Do not plant near cucumbers or rue. Sage repels cabbage moths and black flea beetles. Allowing sage to flower will also attract many beneficial insects and the flowers are pretty. There are some very striking varieties of sage with variegated foliage that can be used for their ornamental as well as practical qualities.

SOUTHERNWOOD: Plant with cabbage, and here and there in the garden. Wonderful lemony scent when crushed or brushed in passing. Roots easily from cuttings. Does not like fertilizer! It is a perennial that can get quite bushy. We have started to cut it back every spring and it comes back in not time. A delightful plant that is virtually pest free.

SOYBEANS: They add nitrogen to the soil making them a good companion to corn. They repel chinch bugs and Japanese beetles. Soybeans are so good for you! They are many ways to prepare them.

SUMMER SAVORY: Plant with beans and onions to improve growth and flavour. Discourages cabbage moths. Honey bees love it.

SUNFLOWERS: Planting sunflowers with corn is said by some to increase the yield. Aphids a problem? Definitely plant a few sunflowers here and there in the garden. Step back and watch the ants herd the aphids onto them! We have been doing this for years and it is remarkable. The sunflowers are so tough that the aphids cause very little damage and we have nice seed heads for our birds to enjoy! Talk about a symbiotic relationship!

TANSY: Plant with fruit trees, roses and raspberries keeping in mind that it can be invasive and is not the most attractive of plants. Tansy which is often recommended as an ant repellent may only work on sugar type ants. These are the ones that you see on peonies and marching into the kitchen. At least for us placing tansy clippings by the greenhouse door has kept them out. Deters flying insects, Japanese beetles, striped cucumber beetles, squash bugs, ants and mice! Tie up and hang a bunch of tansy leaves indoors as a fly repellent. Use clippings as a mulch as needed. Don't be afraid to cut the plant up as tansy will bounce back from any abuse heaped on it! It is also a helpful addition to the compost pile with its' high potassium content.
·Tansy Warning: You do not want to plant Tansy anywhere that livestock can feed on it as it is toxic to many animals. Do not let it go to seed either as it may germinate in livestock fields.

TARRAGON: Plant throughout the garden, not many pests like this one. Recommended to enhance growth and flavour of vegetables.

THYME: Deters cabbage worms. Woolly thyme makes a wonderful groundcover. You may want to use the upright form of thyme in the garden rather than the groundcover types. Thyme is easy to grow from seeds or cuttings. Older woody plants should be divided in spring.

WHITE GERANIUMS: These members of the pelargonium family draw Japanese beetles to feast on the foliage which in turn kills them.

WORMWOOD: Keeps animals out of the garden when planted as a border. An excellent deterrent to most insects. A tea made from wormwood will repel cabbage moths, slugs, snails, black flea beetles and fleas effectively. The two best varieties for making insect spray are Silver King and Powis Castle. Adversely Powis castle attracts ladybugs which in turn breed directly on the plant. Silver Mound is great as a border plant and the most toxic wormwood. Note: As wormwood actually produces a botanical poison do not use it directly on food crops.

Target insects: Aphids, caterpillars, crawling insects and slugs. May repel snakes.
Caution is advised when using wormwood sprays around plants as it can inhibit growth. Best results are obtained when spraying directly onto the target insect when possible.
To Make:8 ounces wormwood leaves, 4 pints of water, 1 teaspoon castille soap
·1. Simmer wormwood leaves in the water for 30 minutes. Stir, strain, and leave to cool.
·2.Add the castille soap to wormwood mixture and use to spray

YARROW: Yarrow has insect repelling qualities and is an excellent natural fertilizer. A handful of yarrow leaves added to the compost pile really speeds things up. Try it! It also attracts predatory wasps and ladybugs to name just two. It may increase the essential oil content of herbs when planted among them. Yarrow has so many wonderful properties to it and is an ingredient in our own.


No heading for fridge....need cold beer....need cold beer!

[Jaxom]

Geordie you have come up trumps again! Fantastic post.
Jax

[Nicos]

wow! thankyou. Shall be planning another trip to the garden centre, although I doubt they sell many of those more unusual plants or seeds! Anyone know of a good site to buy them from on-line? Geordie- I hope you enjoyed that beer...you certainly deserved it!!!

[JennieAtkinson]

You've done it again Geordie !!!! Many thanks - another one for my scrapbook
Jennie

[nick the grief]

Bit of useless information, the russian for wormwood is Chernobyl - something about stars & distruction wormwood wasn't it!

[suee]

Hello rat, please could you e-mail me your list of good companions? I've just planted the potatoes with the horseradish. Have a nice day.
Many thanks, Sue.
peteandsue47@aol.com

[Emma]

Hi,
Could you email me as well please as have just tried to print all of that off with no sucess.
Thanks
emma@watkins100.fsworld.co.uk

[Nicos]

Thanks to Geordie's fine list , I am now reviewing where to hang my ladybird box. I had thought that the ideal place was right next to the bay tree!!! At least there will be a chance of them wanting to use it now! Would have been a waste of a thoughtful xmas pressi.

[Lesley Jay]

Nicos ladybirds are attracted by Impatiens so grow some near the box.

[Nicos]

LJ - do you know of any other flowers they also like? -esp perennials?