Posted by: grandma | December 7, 2007

Why Plant Marigolds in your Vegetable Garden?

Why do I plant marigolds in my vegetable garden?

Marigolds are easy to grow and they help keep the away aphids. “The relationship between plants and insects is known as ‘companion planting.’  it’s by far the safest, natural way to garden organically.”

 SHERIDAN NURSERIES GARDEN TIP  gives you tips on Plants That Naturally Repel Insects:There are many beneficial herbs that keep insects away.

Ø      Peppermint repels ants, white cabbage moths, aphids, and flea beetles.

Ø      Garlic discourages aphids, fleas, Japanese beetles, and spider mites.

Ø      Perennial Chives repel aphids and spider mites.

   o      Chives are often planted among roses to keep aphids away and to resist the disease, Blackspot.

Ø      Basil drives away flies and mosquitoes.

Ø      Borage deters that monster of vegetable garden insects, the tomato hornworm.

Ø     Rosemary and Sage repel cabbage moths, bean beetles, and carrot flies.

Ø     Annual Marigolds can be used anywhere to deter Mexican bean beetles, squash bugs, thrips, tomato hornworms, and whiteflies. They are also known to repel harmful root knot nematodes (soil dwelling microscopic white worms) that attack tomatoes, potatoes, roses, and strawberries. The root of the Marigold produces a chemical that kills nematodes as they enter the soil. If a whole area is infested, at the end of the season, turn the Marigolds under so the roots will decay in the soil. You can safely plant there again the following spring.

Ø     Nasturtium is another annual, in this case a trailing vine, that keeps away Colorado potato bugs, squash bugs, and whiteflies.

Ø     The perennial, Artemisia or Wormwood, deters slugs that are so devastating to foliage.

Ø     Radishes can be planted to discourage cucumber beetles, squash bugs, and stink bugs.

Attracting Good Insects To Your Garden:

Plant certain vegetables, herbs, or flowers in your garden to attract predatory insects that will feed on the harmful, undesirable ones.

Perennial Yarrow…attracts ladybugs that consume masses of aphids. The lacewing that feeds on aphids, mealy bugs, mites, and scale needs lots of pollen from flowers and evergreens for shelter. Wasps and bees are also beneficial to the garden. Even the prehistoric-looking preying mantis is a friend, so don’t discourage it from visiting. When you create a natural balance in your garden you’ll discover how much better everything grows and you won’t need to worry about damaging the environment.they also suggestIdeal Planting Companions For Vegetables:The following is a list of vegetables and their ideal planting companions, plus combinations to avoid:

  • Beans-like celery and cucumbers but dislike onions and  fennel.
  • Beets are compatible with bush beans, lettuce, onions, kohlrabi, and most members of the cabbage family. Keep pole beans and mustard away from them.
  • Cabbage, celery, dill, onions, and potatoes are good companion plants. Dislikes include strawberries, tomatoes, and pole beans.
  • Carrots, lettuce, radish, onions, and tomatoes are friends. Dill isn’t, so plant it at the other end of the garden.
  • Corn prefers to be near pumpkins, peas, beans, cucumbers, and potatoes. Keep tomatoes away.
  • Cucumbers like sweet corn, peas, radishes, beans, and sunflowers. Dislikes include aromatic herbs and potatoes.
  • Lettuce grows especially well with onions. They are also compatible with strawberries, carrots, radishes, and cucumbers.
  • Onions can be planted near lettuce, beetroot, strawberries, and tomatoes but keep well away from peas and beans.
  • Peas, carrots, cucumbers, sweet corn, turnips, radishes, beans, potatoes, and aromatic herbs are good companions. Keep peas away from onions, garlic, leek, and shallots.
  • Radish grows well with beetroot, carrots, spinach, parsnip, cucumbers, and beans. Avoid planting near cabbage, cauliflower, Brussels sprouts, broccoli, or turnips.
  • Squash can be planted with cucumbers and corn.
  • Tomatoes, carrots, onions, and parsley are good companion plants. Basil improves growth and flavour. Keep cabbage and cauliflower away from them.



  1. Intresting. I did not know that planting herbs can keep away so many bugs 🙂 Can’t wait to start my herb garden!

  2. I have planted marigolds in my gardens for years and they help contraol pests. Plus I like the additional color!

    I also practise combination gardening to help improve insext control and aid other vegetables.

    Nice list of companion planting here and great article.



  4. just got your site, looks good.looking forward to trying your stuff. rudy p.s. got site from friend.

  5. Thanks so much for your great article. I am new to gardening as I lived in NY and had no ability to do so then, so any good advice helps.

    Thanks Again,

  6. I planted my first garden now part of it any ways What can be the best plants for the upcoming winter? We don’t get any snow but it will occassionaly drop around 22 degrees. I bought Marigolds but how many should I plant in my garden? How much water do they need?
    Is their any magazines out there just for Organic Growing? I’m really glad I found this web site. Thank you,

  7. Thanks for the question, and appreation for the site.
    I hope this can be usefull.

    I am not sure how big your garden is, but what I do is buy a 6 or 9 pack of them (depends what Home Depot is caring) – make sure they smell real strong. Then I plant them around especially around my tomato’s. Sometimes I plant a row of marigolds in front of my tomato’s, and sometimes I plant them between my tomato’s, sort of depends how many tomato’s and how many marigolds I have. If in doubt, plant an extra one if you see the bugs are coming. I usually never see a bug If I ever do I just pinch him off. My marigolds are already flowing and my vegetable plants are small so perhaps that is why I have such good luck.
    There is no magic number of merigoldes to tomato that I have found. Like anything else it just takes a little TLC.

    In aquaponics my plants are always getting the proper amount of oxegen, nutrition and water (for the roots are completly submereged under water).

    I do not know about an Organic Magazine. The book I use is Rodale’s All-New Encyclopedia of Organic Gardening. It is complete and practical.

    Good Luck form the fish pond.

  8. I put this on my fav’s list…Thank you!!!!
    I just have one pest that wasn’t mentioned…ants! I grow lots of Salvias and Honeysuckles for the Hummingbirds. Every year they cover each plant. One “lady in Red” Salvia plant would have 100 ants on it…and I plant 20 of them. That’s to give you an example of the insanity…AGH!
    What do you suggest?
    Thank you for your time,

    • I too have had trouble with ants but in a different manner.
      When I had a dirt garden, I reasoned the more the mulch the better. That was right, I had a great recycling idea -on garbage day pick up bags of grass clipping / leaves that people where throwing away – free mulch! The problem lied in that I did not use any type of chemical pest control and the yards that I was gathering the mulch did. As the ants began to populate my corner of the earth they became super powerful “Fire Ants.” County Extension suggested Diatomaceous Earth (DE), (I think I got a big bag at either Home Depot or a pool place- sorry I can’t remember where). I did try this but my problem was so out of control. Unfortunately after the second trip to the hospital I chose a chemical pest control…. you buy it at home Depot. its the granular ant killer- orthro in the red bag…. it last for one year……I have only used it 2 times in 5+ years.

      Ants gone!
      Unfortunately, Lizards love ants…
      and my lizard population was just about wiped out. they are thriving now but still not as many as before. I no more “FIRE ANTS” in my yard. Praise the Lord!

      hope this helps. Let me know what you do and how it works

    • I was talking to my friend, Susan Mahan our plant lady at Morning Star Fishermen. She was telling me they had a problem with ants on their bell peppers. When she moved the onions around the bell peppers it reduced the ants to just a few. She tried Scallions, leeks, garlic onions… they all worked well… hope this helps, and I hope you like onions…

  9. […] Companion planting is something else I plant to do this year.  The following list was found on Toadstool Aquaponics: […]

  10. […] be certain to add a few flowers to the list. There are assured types of flowers and herbs that will repel harmful bugs naturally from your garden. that is a great way to keep your garden […]

  11. […] a list of additional plants that help your garden thrive, visit this site.     Read More    Post a […]

  12. I know that peppermint repels ants in the veggie garden, but how many do I need. Cayenne pepper works but you have to keep sprinkling it every so many days. I don’t want all my food tasting like that, either. Help. It’s my first garden (small one 8’x6′) and I am really proud of it. I have thousands of little ants in it now. (ps. I also put pinwheels in it and they keep birds and rabbits out. I love companion planting.

    • You should try cornmeal! I sprinkle it around my house to get rid of ants. The ants eat it and take it back to the nest but they cant digest it and it kills them and the nest! I have had alot of sucess with this method i use about 2 cups in my 16×24 garden and it seems to do the job i reapply every week in spring and then they are gone till the fallowing spring! Slugs love beer it kills them so i put plates of it out at night if they start to do there work in my veggie patch! As for larger criters barrow a large hunting dog for a weekend a male if you can he will mark your whole yard and keep armadillos, racoons, opossims, out of the yard. Kitty litter used is a great deterant for moles, voles, ground squirls, and ground hogs. Just fill the holes with used litter and the smell drives the criters off! Irish spring soap in a knee high hung around your garden will help with deer and squirls as they hate the scent! I have used all of these with a good deal of sucess!HTH

  13. this is wonderful! I’m linking to this!

  14. I am new to vegetable gardens, this year I got tons of tomato plants because last year I was fighting with a squirrel for my tomatos and she always beat me to them!
    I just saw a lot of aphids in my arugula?? I will follow some of this tips, they are great
    Thanks 🙂
    I planted green beans, carrots, romaine, arugula, serrano, tomato, cawliflower, japanese cucumber, small zuchini, lemon balm, loving it!

  15. My dad gave me a recipe that I have not tried yet,
    1 tablespoon of a mild detergent, 1 tablespoon of crude oil, 1 gallon of water, suppose to kill all insects and plants like this formula when sprayed in the evening.

  16. I appreciate all your comments and tips about gardens. I plant in a earth box, hardly any work and nothing to plant to scare off insects. Can anyone tell me how to get rid of animals that are digging under the porch? The animals are probably armadillos, the size of a cat. This happens in the early morning hours so no cats or dogs are involved. Do marigolds hinder them?

  17. does anyone know how to keep cats out of garden

    • you need to get one of those automatic sprinkler with and motion sensor I have one and they work great. once the get a blast or two the stop coming in

      • I would love to see that on video.

  18. Why do you have thse gardens

  19. This is s very informative article. I am going to add it to my gardening journal. Thank you.

  20. what about okra whats it prefer to be beside.

  21. I have been combating fire ants. i just found out they hate spearmint. I just thought i’d share.

  22. marigolds work well to keep out pests and they look/smell great. Another simple tip for keeping out garden pests: beer for slugs and tinfoil ‘collars’ for broccoli. Catapillars, slugs and other pests will retreat after contact with tinfoil. The more flowers inviting the ‘good’ bugs, the better!

  23. Oh my word, I had no idea of all these likes and dislikes of plants and ways to keep the bugs away. Great resource, thank you!!

  24. […] Why do I plant marigolds in my vegetable garden? […]

  25. […] Keep weeds at bay and slugs (for us anyways) away with proper treatment or manual labor. You have put so much time into getting it into the ground, don’t let those pests take over your crop. […]

  26. Wonderful! Thank you!

  27. Thanks for the wonderful information. My husband just finished tilling my garden space so I can plant this week and will keep this info in mind as I plant seeds and seedlings as well as pick up more plants.

  28. […] I am doing the opposite this year I am turning my garden area into a more eye appealing area of my yard.  I am adding flowers to the mix.  Some flowers keep bugs away. […]

  29. Nice blog…and useful information

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