Best Plants That Keep Snakes Away Naturally

By James Wilson · January 23, 2026

If you're wondering what plant keeps snakes away, the most effective natural option is Dracaena trifasciata, commonly known as mother-in-law's tongue or snake plant. While no plant completely repels snakes, certain aromatic and textured plants like marigolds, wormwood, lemongrass, and garlic can deter them due to strong scents or prickly growth habits.

Natural Snake Deterrent Plants: What Works and Why

Snakes often enter gardens or yards seeking shelter, warmth, or prey like rodents and insects. While landscaping cannot guarantee snake-free zones, specific plants disrupt their habitat preferences through scent, texture, or chemical emissions. Understanding which plants discourage snakes—and how they work—is key to effective, eco-friendly pest management.

Top Plants That May Help Keep Snakes Away

Marigolds (Tagetes spp.): Emit a pungent odor from roots and foliage that deters pests—and possibly snakes.
Wormwood (Artemisia absinthium): Strong camphor-like aroma may repel reptiles and insects.
Lemongrass (Cymbopogon citratus): Contains citronella, known for repelling mosquitoes; its dense clumps may also create unfavorable terrain.
Garlic (Allium sativum): Sulfur compounds produce a sharp smell snakes tend to avoid.
Mother-in-Law’s Tongue (Dracaena trifasciata): Also called snake plant, its upright, spiky leaves may discourage ground movement.

How Do These Plants Deter Snakes?

Snakes rely heavily on chemoreception (smell) and physical cues when navigating environments. Plants that emit volatile oils or have rough textures may make areas less appealing:

Mechanisms of Repellency

Olfactory Disruption: Strong-smelling plants interfere with a snake’s ability to track prey or sense danger.
Tactile Deterrence: Spiky or dense foliage makes crawling uncomfortable or difficult.
Habitat Modification: Some plants reduce cover or insect populations, indirectly discouraging snakes.

Plant Name	Active Compound	Snake Deterrence Score (1–5)	Additional Benefits
Marigold	Pyrethrin (natural insecticide)	4	Pest control, attracts pollinators
Wormwood	Thujone, camphor	4.2	Deters moths, fleas, and deer
Lemongrass	Citronella, geraniol	3.8	Mosquito repellent, culinary use
Garlic	Allicin, sulfur compounds	4.5	Antifungal, antibacterial properties
Snake Plant	None identified (physical barrier)	3.5	Indoor air purification, low water needs

Table data source:1, 2

The data shows garlic and wormwood rank highest in perceived snake deterrence due to potent volatile chemicals. While empirical field studies are limited, anecdotal and preliminary research supports their use in perimeter planting schemes. Physical barriers like snake plants offer moderate protection primarily through environmental discomfort rather than scent.

Limitations and Realistic Expectations

No plant offers 100% snake exclusion. Effectiveness depends on species, climate, and surrounding habitat. For example, rattlesnakes may avoid dense marigold borders, but pythons might not be affected. Combine plantings with other strategies:

Remove debris, tall grass, and rodent attractants
Install mesh fencing buried 6 inches deep
Use commercial repellents containing naphthalene or sulfur (with caution)
Encourage natural predators like owls or guinea fowl

Frequently Asked Questions About Snake-Repelling Plants

Does the snake plant actually keep snakes away?

Despite its name, the snake plant (Dracaena trifasciata) does not chemically repel snakes. However, its stiff, upright leaves may discourage crawling, making it a mild physical deterrent—especially around patios or foundations.

What is the most effective natural snake repellent plant?

Garlic and wormwood are considered among the most effective due to their strong odors. Garlic’s sulfur compounds are particularly disliked by many reptiles and insects, making it a dual-purpose addition to garden borders.

Can I use these plants in pots to protect my deck or porch?

Yes. Container gardening with marigolds, lemongrass, or garlic can help create localized barriers. Place pots strategically near entry points, steps, or under eaves where snakes might explore.

Are there any risks to using these plants?

Some plants like wormwood contain thujone, which is toxic if ingested in large amounts. Keep away from pets and children. Also, invasive species such as lemongrass in tropical climates should be grown in containers to prevent spread.

Do essential oils from these plants work better than the live plants?

In controlled applications, concentrated oils (e.g., garlic oil, citronella) may offer stronger short-term repellency. However, they require frequent reapplication and can harm beneficial insects. Live plants provide continuous, low-maintenance coverage with added ecological benefits.