Does This Plant Really Repel Mosquitoes and Snakes? Here’s What You Should Know

The image suggests that a certain grass-like plant can make mosquitoes and snakes “terrified,” implying that growing more of it at home increases safety. Claims like this are common on social media, especially regarding plants such as lemongrass (Cymbopogon citratus), citronella grass, or similar aromatic species.

Let’s separate myth from evidence and look at what science actually says.

What Plant Is Commonly Associated With This Claim?

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The plant in these viral posts is usually:

• Lemongrass (Cymbopogon citratus)

• Citronella grass (Cymbopogon nardus)

These plants contain natural compounds such as:

• Citronellal

• Geraniol

• Limonene

These substances are known for their aromatic properties and are commonly used in insect-repellent products.

Do These Plants Repel Mosquitoes?

Short Answer: Partially, but not strongly enough on their own.

Citronella oil—extracted and concentrated from the plant—has been shown to repel mosquitoes when formulated into sprays, candles, or lotions.

However:

• Simply planting citronella grass in a yard does not release enough oil into the air to provide strong protection.

• The active compounds must be crushed or processed to be effective.

• Wind disperses the scent quickly outdoors.

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So while citronella-based products can help reduce mosquito bites, growing the plant alone offers minimal protection.

Do These Plants Repel Snakes?

There is no strong scientific evidence that lemongrass or citronella plants repel snakes.

Snakes rely primarily on:

• Vibration detection

• Heat sensing

• Chemical cues via tongue flicking

There is no conclusive research showing that planting citronella or lemongrass prevents snakes from entering an area.

Snake presence is usually influenced by:

• Availability of food (rodents, frogs)

• Shelter (tall grass, debris piles)

• Water sources

• Warm environments

Simply growing aromatic plants does not reliably deter them.

Why Do These Claims Spread So Widely?

Several reasons:

• The plant has a strong scent, which feels “protective.”

• Citronella is already marketed as a mosquito repellent.

• Natural remedies are appealing and easy to share online.

• Visual marketing exaggerates effects for engagement.

The idea of a simple plant solving two safety concerns at once is attractive—but oversimplified.

What Actually Helps Reduce Mosquitoes?

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Evidence-based mosquito control includes:

• Eliminating standing water

• Installing window screens

• Using EPA-approved repellents

• Wearing protective clothing

• Using mosquito nets

• Maintaining yard cleanliness

Mosquito populations depend heavily on water sources. Removing breeding areas is far more effective than relying on plants.

What Actually Reduces Snake Risk Around Homes?

Preventive strategies include:

• Keeping grass trimmed short

• Removing woodpiles and debris

• Sealing gaps in walls and fences

• Controlling rodent populations

• Reducing clutter in gardens

• Avoiding dense shrubbery near foundations

Snakes seek food and shelter—not specific plants.

Is There Any Benefit to Growing Lemongrass or Citronella?

Yes—just not magical ones.

These plants:

• Are easy to grow

• Add fragrance to gardens

• Can be used in cooking (lemongrass)

• Provide some mild mosquito deterrence when crushed

They can be part of a broader strategy—but not the only solution.

Important Reality Check

No plant alone can guarantee safety from mosquitoes or snakes. Relying solely on natural remedies may create a false sense of security.

Effective protection requires:

• Environmental management

• Proper sanitation

• Physical barriers

• In some cases, professional pest control

Final Thoughts

The claim that mosquitoes and snakes are “terrified” of a specific plant is an exaggeration. While citronella and lemongrass contain compounds used in insect repellents, planting them in your yard will not create an invisible protective shield.

Aromatic plants can complement safety strategies, but they should not replace practical, evidence-based prevention methods.

When it comes to home safety, balanced information is far more powerful than viral claims.