Marigold Companions (2024)

Our Herb Garden > Marigold Companions

Growing Marigolds

(tips on growing marigold in your garden)

Marigold Companions (1)

Bright orange flowers add a splash of color to your garden. But, those lovely marigold flowers can also provide a natural pest deterrent as well as strength to other plants.

We talk about a number of plants that make great companions for marigold and have found two vegetables that experts disagree on. After you check out the rest of this marigold companion guide, be sure to also check out our guides on growing marigold and companion planting guides.

Marigold Companion Planting

Marigold companion planting enhances the growth of basil, broccoli, cabbage, cucumbers, eggplant, gourds, kale, potatoes, squash and tomatoes. Marigold also makes a good companion plant to melons because it deters beetles.

Beans and cabbage are listed as bad companion plants for marigolds.

Marigolds, Cabbage & Broccoli.

As you might have noticed, I listed cabbage on both the good companions and the bad companions lists. Like so many things in gardening, the experts often have differing opinions. Cabbage and I suspect it’s fellow Brassica broccoli appear to be questionable companions. Since neither of our conflicting sources mentioned why they felt positively or negatively about cabbage as a companion, it might be best to assume the worst and consider both broccoli and cabbage as bad companions for marigolds.

Marigold & Insects

Marigolds have traditionally been used as borders around treasured flower beds and vegetable gardens. Scented varieties of marigold will deter beetles, beet leaf hoppers, Mexican bean beetle and nematodes. Pot marigold repels asparagus beetle and tomato worm and Mexican marigold is thought to repel rabbits.

We found out the hard way that the newer hybrid marigolds have not retained this natural pest controlling scent. We purchased some light yellow plants and the ravenous aphids promptly destroyed them. Of course, I suppose, you could argue that the nasty little things were so busy eating our marigolds that they left our vegetable garden unmolested.

Not all the news about marigold is good though. They do tend to attract spider mites and slugs.

Marigolds as a Natural Pesticide.

The roots of French marigolds produce a chemical that is so strong it is an effective pesticide for years after the plants are gone.

Mexican marigolds produce a stronger version of this chemical which has the potential to inhibit the growth of some of the more tender herbs.

Additional Marigold Information

(Calendula officinalis, Linn.)

To learn more about growing marigolds be sure to check out our marigold fact sheet.

Further Reading

Marigold Companions (2)Marigold Companions (3)

Don’t get me wrong, I absolutely adore marigolds. Their colors are so bright and striking in a garden. But, when it comes down to it, many of us plant them in hopes that they will be able to chase away harmful garden pests or at least keep them away from more valuable things like our prize tomatoes. If you are trying to keep your garden pesticide free, The Organic Gardener’s Handbook of Natural Pest and Disease Control: A Complete Guide to Maintaining a Healthy Garden and Yard the Earth-Friendly WayMarigold Companions (4) might offer some additional ideas to winning the war against aphids or whatever little insect demons are plaguing your garden.

  1. Marigold Companions (5)

    I am 75 years old and just decided to learn about the beautiful marigold and after learning all their qualities I love them more now than ever beforre!

    1. Marigold Companions (9)

      No worries. There’s so many variables involved that what works in one area might not work in another (or just might be folklore that doesn’t work at all). I’ve heard time and time again to plant marigolds to deter bunnies. Yet, I’ve seen where bunnies actually ate them – guess they didn’t get the memo they’re supposed to hate them.

  2. Marigold Companions (11)

    I have a very small back area and have marigold starts against the fence. I ended up with several strong marigold seedlings and I’m wondering if I can plant a couple in the area of the morning glories or if that is a bad idea. I’m sorry if this is not the right place for such a question. Thank you

    1. Marigold Companions (12)

      Sorry I meant I have morning glory starts against the fence and wondering if I could put a couple Marigold starts next to them

      1. Marigold Companions (13)

        To be honest, I’m guessing here, but; our experience with morning glory is it kinda grows where it wants to; and it often grows in odd places. I would think if they’re already established that the marigolds wouldn’t bother it. Maybe just plant a few starts? Hopefully, we’ll get someone else to stop by and share their own experience.

  3. Marigold Companions (14)

    Your first paragraph is rather unclear. Your first sentence states marigolds are good companions for cabbage and your second sentence says cabbage is a bad companion for marigolds???

    1. Marigold Companions (15)

      And, the next paragraph said that the “expert” opinions did not explain why companion planting marigold with cabbage is preferred or not; which is why I mentioned both and suggested to assume the worst rather than risk losing your crop.

  4. Marigold Companions (16)

    Your yellow “marigolds” were probably actually calendula officinallis, sometimes referred to as pot marigolds, but are not at all the same as what we know as Marigolds (tagetes …). Here’s a link to help with the confusion. https://unrulygardening.com/calendula-vs-marigolds-the-differences/
    They are completely different plants, and I’ve definately noticed that Calendula do not hold up to pests like Marigolds do.

    1. Marigold Companions (17)

      That would make a ton of sense! Particularly as we watched the very pests that were supposed to hate marigolds happily munching on them. But after visiting the article you suggested; we did have true marigolds. I do wonder though if they’ve been so very hybridized that they have become somewhat less effective for pest management.

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Marigold Companions (2024)

FAQs

Why is marigold incomplete? ›

Marigold flowers are considered to be incomplete. Explanation: To be considered complete, a flower must have all of the four main parts: petals, sepals, and male (stamen) and female (pistal) parts. Marigolds are compound flowers.

What should you not plant marigolds next to? ›

Marigold companion planting enhances the growth of basil, broccoli, cabbage, cucumbers, eggplant, gourds, kale, potatoes, squash and tomatoes. Marigold also makes a good companion plant to melons because it deters beetles. Beans and cabbage are listed as bad companion plants for marigolds.

How many marigolds should you plant together? ›

In planting beds, space African marigolds 10 to 12 inches apart, while French marigolds should be 8 to 10 inches apart. If you're planting marigolds into containers, use a pot that's at least 10 inches across for African and larger French types.

What is the order of marigold? ›

What is the main problem in marigolds? ›

The main conflict in Collier's "Marigolds" is Lizabeth's immature and malicious actions towards Ms. Lottie, an elderly woman living in her neighborhood. Along with her friends, Lizabeth regularly harasses and throws stones at Ms. Lottie.

Why are my marigolds getting tall but no flowers? ›

In shade, they may produce foliage, but few blooms will appear. Lack of adequate sunlight is a very common reason for no flowers on marigolds.

What happens if you plant marigolds too close together? ›

If you plant flowers too close together, the plants get stressed and are prone to diseases, Kole says. If air can't properly circulate and the plants can't dry out between waterings, fungus sets in. Roots can rot. And once plants are weakened from stress, insects move in.

What destroys marigolds? ›

Slugs, leafminers, aphids, whiteflies, thrips, and caterpillars can also cause damage. Marigolds are susceptible to diseases caused by viruses such as Tomato Spotted Wilt Virus (TSWV), Impatiens Necrotic Spot Virus (INSV), Cucumber Mosaic Virus (CMV), and the phytoplasma disease called Aster yellows.

Should I plant marigolds with my tomatoes? ›

Marigolds and tomatoes make great companion plants for many reasons. The two plants have almost identical growing requirements: full sun, heat tolerant, and do best in well-draining rich soil. But these are just a few reasons these two go great together.

What month is best to plant marigolds? ›

Being a hardy annual, pot marigold (Calendula officinalis) can be sown direct into the soil outside in March, April, or May for summer flowers the same year. Alternatively, they can be sown direct into the soil outside in August or September for flowers the following year.

Do marigolds grow better in pots or in the ground? ›

Marigolds make for stunning outdoor container plants, due to their long-lasting color and texture. Plus, they respond well to transplanting and quickly establish new roots in soil. You can "use ordinary commercial potting soil in any kind of container, but clay pots are especially good," says Groft.

Do marigolds come back every year? ›

The commonly planted French marigolds and African marigolds are annuals—they sprout, grow, flower, and die, all in the same year—but that doesn't mean they won't come back. Marigolds frequently self-seed, meaning their seed drops, overwinters, and germinates in the spring without any help from the gardener.

What is the old name for marigolds? ›

The British called the French Marigold the “Rose-of-the-Indies”. In Spain, the flowers were the favorites to be placed on the altar of the Virgin Mary. Eventually they became known as Mary's Gold and hence, marigold. In India, the plants grew to have religious significance and became known as the Friendship Flower.

Do marigolds repel mosquitoes? ›

Marigolds. Cheerful and bright, marigolds make an easy-to-grow addition to any garden plan — in pots or planting beds. These perky annuals bring terrific color all season long. What you might not know is that marigolds pack a punch to many insects, including mosquitoes, thanks to chemical insecticides they release.

What makes a flower incomplete? ›

A perfect flower is one that has both male and female parts. An imperfect flower is one that only has male or female parts. A complete flower contains sepals, petals, pistils, and stamens. An incomplete flower is missing one of those parts.

Are marigolds a complete flower? ›

Yes, a marigold is considered a complete flower. A complete flower is defined as a flower that possesses all four main floral organs: sepals, petals, stamens, and pistils. Marigolds (genus Tagetes) typically have five sepals, which are the outermost whorl of green leaf-like structures that protect the flower bud.

Why some flowers are called incomplete flowers give reason? ›

Incomplete flowers lack one out of the four major structures of a flower: stamen, pistils, sepals, or petals. Some incomplete flowers lack either the stamen or the pistil on the flower while having sepals and petals.

Why are marigolds hard to grow? ›

Marigolds do best in rich, well-draining soil that remains moist, though once established can be somewhat drought tolerant as well. Keep in mind that if they are planted in cool, or moist locations, marigolds are susceptible to powdery mildew.

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