Marigolds emit a scent that repels some bees, but they still attract pollinators like butterflies and hoverflies. So, do marigolds keep bees away? The short answer is yes and no—it depends on the type of bee and your garden goals.
Many gardeners plant marigolds hoping to create a bee-free zone. These bright flowers are known for their strong, pungent odor. That smell can confuse or deter certain insects.
But bees are not all the same. Honeybees and bumblebees may avoid marigolds. Smaller native bees and other pollinators often visit them anyway.
Let’s dig into the science and practical tips. You’ll learn exactly what to expect from marigolds in your yard.
Do Marigolds Keep Bees Away
This is the big question. The answer is more nuanced than a simple yes or no.
Marigolds contain compounds like thiophene and limonene. These give the plant its distinctive smell. For some bees, that odor is off-putting. Honeybees, in particular, seem to dislike it.
However, not all bees react the same way. Bumblebees may still visit marigolds for nectar. Solitary bees often ignore the scent entirely.
So, if you want to keep honeybees away from a patio or picnic area, marigolds can help. If you want to repel all bees completely, you’ll need stronger methods.
Why Some Bees Avoid Marigolds
The strong scent is the main reason. Marigolds produce essential oils that are sharp and bitter. Bees rely heavily on smell to find food. A confusing or unpleasant odor can send them elsewhere.
Also, marigold flowers have a simple structure. They offer less nectar than many other blooms. Bees learn quickly that marigolds are not a high-value food source.
This is why marigolds are often recommended as companion plants. They can mask the scent of vegetables that attract bees.
Which Bees Are Deterred
Not all bees are equally affected. Here’s a quick breakdown:
- Honeybees: Strongly deterred. They usually avoid marigold patches.
- Bumblebees: Moderately deterred. They may visit occasionally.
- Carpenter bees: Less affected. They might still check the flowers.
- Solitary bees: Often ignore the scent. They can be regular visitors.
If your goal is to reduce bee activity near seating areas, marigolds work well for honeybees. For other types, results vary.
How Marigolds Affect Pollinators
Marigolds are not bee-repellant in the way chemical sprays are. They simply make the area less attractive to certain bees. Meanwhile, they remain inviting to other beneficial insects.
Butterflies love marigolds. Hoverflies, which eat aphids, also visit them. Ladybugs and lacewings may stop by too.
This makes marigolds a smart choice for balanced gardens. You reduce unwanted bee activity while still supporting biodiversity.
Attracting Beneficial Insects Instead
If you plant marigolds, you’ll likely see more of these helpers:
- Butterflies: They are drawn to bright colors and nectar.
- Hoverflies: They mimic bees but do not sting. Their larvae eat pests.
- Parasitic wasps: Tiny wasps that control caterpillars and aphids.
These insects do not pose a sting risk. They help your garden thrive without the buzz of bees.
Marigold Varieties And Bee Response
Not all marigolds are equal. Some types have stronger scents than others.
French marigolds (Tagetes patula) are very pungent. They tend to repel bees most effectively. African marigolds (Tagetes erecta) have a milder smell. Bees may visit them more often.
Signet marigolds (Tagetes tenuifolia) have a lemony scent. They are less repellant to bees overall.
For maximum bee deterrence, choose French marigolds. For a more pollinator-friendly option, go with signet varieties.
Practical Tips For Using Marigolds
If you want to use marigolds to keep bees away, placement matters. Here are step-by-step strategies.
Step 1: Choose The Right Location
Plant marigolds near patios, decks, or picnic tables. This creates a scent barrier. Bees will be less likely to fly into those areas.
Do not plant them directly in vegetable beds if you want bees to pollinate your crops. Keep them at least 3–4 feet away from pollinator-dependent plants.
Step 2: Use Dense Plantings
A single marigold won’t do much. Plant them in clusters or rows. A dense patch of 6–12 plants creates a stronger scent cloud.
Space them about 8–10 inches apart for French marigolds. African marigolds need 12–18 inches.
Step 3: Combine With Other Repellents
Marigolds work best as part of a strategy. Pair them with other bee-deterring plants like:
- Mint
- Basil
- Lavender
- Citronella
These plants also have strong scents. Together, they create a more effective barrier.
Step 4: Maintain Your Marigolds
Deadhead spent flowers to encourage more blooms. Fresh flowers produce more scent. Water them regularly but avoid overwatering, which can dilute the oils.
Fertilize lightly. Too much nitrogen reduces flower production and scent strength.
Common Misconceptions About Marigolds And Bees
There are many myths about marigolds. Let’s clear them up.
Myth: Marigolds Repel All Bees
False. As we’ve seen, they mainly deter honeybees. Other bees may still visit.
Myth: Marigolds Kill Bees
No. Marigolds are not toxic to bees. They simply discourage them from lingering.
Myth: Marigolds Work Instantly
Not exactly. The scent builds up over time. It takes a few days for bees to learn to avoid the area.
Myth: All Marigold Varieties Are The Same
Incorrect. French marigolds are strongest. African and signet types are milder.
Scientific Studies On Marigolds And Bees
Research backs up the anecdotal evidence. A 2019 study found that marigold extracts reduced honeybee visitation by up to 40%. Another study showed that bumblebees spent less time on marigolds than on other flowers.
However, studies also note that marigolds do not repel all bees. Native bees often ignore the scent. This is because they have different olfactory receptors.
The key takeaway: marigolds are a mild deterrent, not a guaranteed solution.
Alternatives To Marigolds For Bee Control
If marigolds aren’t enough, consider these options.
Stronger Scented Plants
Plants like eucalyptus, wormwood, and pennyroyal have stronger repellent properties. They can be more effective but may also be toxic to pets.
Physical Barriers
Netting or screens can keep bees away from specific areas. Use them around patios or doorways.
Essential Oils
Citronella, peppermint, and tea tree oils can be sprayed around seating areas. Reapply after rain.
Remove Attractants
Bees are drawn to sweet smells and bright colors. Remove flowering weeds near your patio. Keep trash cans sealed.
When Marigolds Might Attract Bees
Sometimes marigolds do the opposite of what you want. Here’s when they might attract bees.
If you plant marigolds in full sun with plenty of water, they produce more nectar. This can attract some bees despite the scent.
Also, certain marigold hybrids are bred for larger flowers. These may have a milder smell and more nectar. Bees may find them appealing.
To avoid this, choose French marigolds and keep them in slightly dry conditions. This concentrates the oils.
Marigolds In Vegetable Gardens
Many gardeners use marigolds as companion plants. They help repel pests like nematodes and aphids. But do they keep bees away from vegetables?
Yes, to some extent. If you plant marigolds around tomatoes or squash, bees may visit less. This can reduce pollination for those crops.
If you need bees for pollination, plant marigolds at the garden’s edge. Keep them away from the main vegetable beds.
For crops like cucumbers and melons, bees are essential. Avoid marigolds nearby. Use them only around self-pollinating plants like peppers and beans.
Marigolds And Stinging Insects
Marigolds may also deter wasps and yellow jackets. These insects are more aggressive than bees. The strong scent can confuse them too.
However, wasps are less sensitive to plant odors. Marigolds are not a reliable wasp repellent. For wasps, consider traps or professional removal.
If you have a bee allergy, marigolds can reduce risk but not eliminate it. Always keep an epinephrine injector nearby if needed.
How To Plant Marigolds For Best Results
Follow these steps for maximum bee deterrence.
- Choose French marigolds. They have the strongest scent.
- Plant in full sun. Sunlight boosts oil production.
- Space plants 8–10 inches apart. Create a dense barrier.
- Water sparingly. Let the soil dry between waterings.
- Deadhead regularly. Remove spent flowers to keep scent strong.
- Fertilize with low-nitrogen food. Too much nitrogen weakens scent.
These steps ensure your marigolds are as pungent as possible.
Seasonal Considerations
Marigolds are annuals in most climates. They bloom from spring until the first frost. Their scent is strongest in warm weather.
In early spring, bees are less active. Marigolds may not be needed until summer. Plant them after the last frost for summer protection.
In fall, marigolds fade. Replace them with chrysanthemums or other late-season plants.
Frequently Asked Questions
Will marigolds keep bees away from my pool?
They can help reduce bee activity near pools, but they won’t eliminate it entirely. Plant a dense border of French marigolds around the pool area.
Do marigolds repel honeybees specifically?
Yes, honeybees are most affected by marigold scent. They tend to avoid areas with strong marigold presence.
Can marigolds keep bees away from a picnic table?
Yes, placing potted marigolds on or near a picnic table can discourage bees from landing on food. Replenish plants every few weeks.
Are marigolds safe for pets around bees?
Marigolds are non-toxic to dogs and cats. However, they may cause mild stomach upset if eaten. They are safe for use around pets and bees.
How many marigolds do I need to keep bees away?
For a small patio, 6–8 plants in a cluster. For a larger area, use 12–20 plants spaced closely together.
Final Thoughts On Marigolds And Bees
Marigolds are a useful tool for reducing bee activity. They are not a miracle cure. But they work well for honeybees and add beauty to your garden.
Remember that bees are vital for pollination. If you don’t have a specific reason to repel them, consider letting them be. Marigolds can coexist with bees in a balanced way.
For those with allergies or outdoor dining areas, marigolds offer a natural, safe solution. Plant them wisely and enjoy your bee-reduced space.