Top 15 Insect-Repelling Plants to Protect Your Garden Naturally

Plants That Repel Insects: Natural Pest Control for Your Garden

Incorporating plants that repel insects into your garden is an eco-friendly way to keep pests at bay. Many aromatic plants not only add beauty but also naturally deter mosquitoes, flies, and other bothersome bugs.

Lavender is a top choice for its pleasant fragrance that repels mosquitoes and moths. Marigolds contain pyrethrum, a natural insecticide effective against aphids and mosquitoes. Citronella Grass, famous for its oil, keeps mosquitoes away, while Basil deters flies and mosquitoes, making it a perfect companion for vegetable gardens.

Mint repels ants and mosquitoes but grows aggressively, so use containers to control it. Rosemary and Thyme are dual-purpose herbs that repel flies and other insects while enhancing culinary dishes. Chrysanthemums are excellent at driving away roaches, fleas, and ticks.

By adding these insect-repellent plants to your garden, you’ll enjoy a pest-free environment while enhancing its natural beauty.

1. Lavender

Lavender is not only a beautiful and fragrant plant but also an effective insect repellent. Its strong scent deters mosquitoes, flies, and moths. Plant lavender along pathways, in garden borders, or in pots near seating areas to enjoy its aroma and pest-repelling benefits. Lavender thrives in full sun and well-drained soil.

Scientific Name:	Lavandula spp.
Type:	Perennial herb
Sun Requirements:	Full sun
Soil Preference:	Well-drained, sandy, or slightly alkaline soil
Height:	1–3 feet tall
Fragrance:	Strong floral scent that repels mosquitoes, flies, and moths
Additional Benefits:	Attracts pollinators like bees and butterflies
Uses:	Dried for sachets, essential oils, or culinary purposes

2. Marigolds

Marigolds are vibrant flowers that contain pyrethrum, a natural insecticide effective against mosquitoes, aphids, and whiteflies. They’re excellent companion plants for vegetables like tomatoes and cucumbers, protecting these crops from pests. Marigolds prefer sunny locations and well-drained soil.

Scientific Name:	Tagetes spp.
Plant Type:	Annual flower
Ideal Growing Zones:	USDA zones 2–11
Sunlight Requirements:	Full sun
Soil Preferences:	Well-drained, fertile soil
Height:	Typically 6 inches to 3 feet, depending on variety
Bloom Colors:	Shades of yellow, orange, red, and maroon
Pest-Repelling Properties:	Repels mosquitoes, aphids, whiteflies, and nematodes due to its natural compounds like thiophenes.
Additional Benefits:	Bright, easy-to-grow blooms that enhance garden aesthetics; attracts beneficial insects like ladybugs.
Uses:	Ideal for borders, companion planting (especially near tomatoes and peppers), and as a natural pest deterrent in vegetable gardens.

3. Citronella Grass

Citronella Grass is famous for its mosquito-repelling properties. Its oil is commonly used in candles and sprays, but the live plant is just as effective. Plant it in sunny areas with well-drained soil, and place it near patios or doorways for maximum effectiveness.

Scientific Name:	Cymbopogon nardus or Cymbopogon winterianus
Common Names:	Citronella Grass, Lemon Grass (though distinct from culinary lemongrass)
Plant Family:	Poaceae (Grass family)
Native Region:	Southeast Asia
Height:	Grows 1–1.5 meters tall
Leaves:	Long, thin, and green with a strong citrus aroma
Growth Pattern:	Clumping perennial grass
Light:	Full sun
Soil:	Well-drained, sandy or loamy soil
Watering:	Moderate, prefers moist but not waterlogged soil
Climate:	Thrives in tropical and subtropical climates; frost-sensitive
Essential Oils:	Source of citronella oil, used in candles, sprays, and lotions as a natural insect repellent
Traditional Medicine:	Used for its antimicrobial and anti-inflammatory properties
Gardening:	Often planted as a mosquito deterrent

4. Basil

Basil is a versatile herb that repels mosquitoes and flies. It’s an excellent addition to vegetable gardens and works well in containers. Basil thrives in full sun and needs regular watering, making it a practical and aromatic pest-control solution.

Scientific Name:	Ocimum basilicum
Plant Type:	Annual herb
Ideal Growing Zones:	USDA zones 9–11 (grown as an annual in other zones)
Sunlight Requirements:	Full sun to partial shade
Soil Preferences:	Well-drained, nutrient-rich soil with a neutral pH
Height:	Typically 12–24 inches
Fragrance:	Aromatic leaves with a sweet and spicy scent
Pest-Repelling Properties:	Effective against mosquitoes, flies, and aphids due to its essential oils, particularly eugenol.
Additional Benefits:	Edible leaves used in culinary dishes; attracts pollinators like bees.
Uses:	Ideal for herb gardens, container planting, or as a companion plant near tomatoes, peppers, and cucumbers to deter pests naturally.

5. Mint

Mint is highly effective at repelling ants, mosquitoes, and flies. However, mint spreads aggressively, so it’s best grown in pots or containers to prevent it from overtaking your garden. Place mint near entryways or seating areas for a refreshing scent and insect control.

Scientific Name:	Mentha spp.
Plant Type:	Perennial herb
Ideal Growing Zones:	USDA zones 3–11
Sunlight Requirements:	Full sun to partial shade
Soil Preferences:	Moist, well-drained soil with a slightly acidic to neutral pH
Height:	Typically 12–24 inches
Fragrance:	Strong, refreshing aroma that repels insects
Pest-Repelling Properties:	Deters mosquitoes, ants, fleas, and flies due to its high menthol content.
Additional Benefits:	Easy to grow, spreads quickly, and is useful for culinary and medicinal purposes.
Uses:	Perfect for containers to prevent overgrowth, companion planting near cabbages and tomatoes, and as a natural insect deterrent in garden borders.

6. Rosemary

Rosemary is a fragrant herb that repels flies, mosquitoes, and cabbage moths. It’s an excellent companion plant for vegetables and can be used fresh in cooking. Rosemary thrives in sunny spots and well-drained soil, making it a low-maintenance choice for pest control.

Scientific Name:	Salvia rosmarinus
Plant Type:	Perennial herb/shrub
Ideal Growing Zones:	USDA zones 7–10
Sunlight Requirements:	Full sun
Soil Preferences:	Well-drained, sandy or loamy soil with a slightly alkaline pH
Height:	Typically 2–4 feet, but can grow taller in ideal conditions
Fragrance:	Woody, pine-like scent
Pest-Repelling Properties:	Repels mosquitoes, cabbage moths, and carrot flies due to its aromatic oils.
Additional Benefits:	Drought-tolerant, attracts pollinators like bees, and enhances flavor in culinary dishes.
Uses:	Ideal for herb gardens, container planting, or as an ornamental hedge; can also be dried for sachets or oils.

7. Chrysanthemums

Chrysanthemums, or mums, are effective at repelling roaches, ants, fleas, and ticks. They contain pyrethrum, which is often used in natural insecticides. Plant chrysanthemums in sunny garden beds or containers to enjoy their vibrant blooms and insect-repelling benefits.

Scientific Name:	Chrysanthemum spp.
Plant Type:	Perennial flower (often grown as an annual in colder climates)
Ideal Growing Zones:	USDA zones 5–9
Sunlight Requirements:	Full sun to partial shade
Soil Preferences:	Well-drained, fertile soil with a slightly acidic to neutral pH
Height:	Typically 1–3 feet, depending on the variety
Bloom Colors:	Wide range, including yellow, white, red, pink, and orange
Pest-Repelling Properties:	Naturally repels ants, roaches, fleas, ticks, and bed bugs due to pyrethrin, a natural insecticide.
Additional Benefits:	Long-lasting blooms, ideal for floral arrangements; attracts beneficial insects like pollinators.
Uses:	Perfect for borders, companion planting, or adding vibrant color to garden beds while keeping pests at bay.

8. Lemongrass

Lemongrass contains citronella, making it a natural mosquito repellent. It’s a tall, grassy plant that grows well in sunny, warm climates. Place lemongrass in containers or garden borders to add texture and keep mosquitoes away.

Scientific Name:	Cymbopogon citratus
Plant Type:	Perennial grass (grown as an annual in colder climates)
Ideal Growing Zones:	USDA zones 9–11
Sunlight Requirements:	Full sun
Soil Preferences:	Well-drained, fertile soil with a slightly acidic to neutral pH
Height:	Typically 2–4 feet
Fragrance:	Fresh citrus aroma
Pest-Repelling Properties:	Repels mosquitoes and flies due to its high citronella content.
Additional Benefits:	Edible leaves and stalks used in teas, soups, and curries; aromatic and visually appealing in gardens.
Uses:	Ideal for container planting, garden borders, or as a natural pest deterrent near patios and seating areas.

9. Petunias

Petunias are colorful flowers that deter aphids, tomato hornworms, and squash bugs. They’re perfect for companion planting in vegetable gardens or as decorative additions to flower beds. Petunias thrive in full sun and well-drained soil.

Scientific Name:	Petunia spp.
Plant Type:	Annual flower (perennial in warm climates)
Ideal Growing Zones:	USDA zones 10–11 (grown as an annual elsewhere)
Sunlight Requirements:	Full sun to partial shade
Soil Preferences:	Well-drained, nutrient-rich soil with a slightly acidic to neutral pH
Height:	Typically 6–18 inches, depending on variety
Bloom Colors:	Wide range, including pink, purple, white, red, and yellow
Pest-Repelling Properties:	Repels aphids, beetles, leafhoppers, and squash bugs.
Additional Benefits:	Continuous, colorful blooms throughout the season; attracts pollinators like bees and butterflies.
Uses:	Perfect for garden beds, containers, hanging baskets, or as companion plants in vegetable gardens to deter pests.

10. Catnip

Catnip is not only a treat for cats but also a powerful mosquito repellent. Studies show that it’s even more effective than some chemical repellents. Plant catnip in containers or garden beds, but keep it away from areas where you don’t want cats to roam.

Scientific Name:	Nepeta cataria
Plant Type:	Perennial herb
Ideal Growing Zones:	USDA zones 3–9
Sunlight Requirements:	Full sun to partial shade
Soil Preferences:	Well-drained soil with a neutral to slightly acidic pH
Height:	Typically 12–36 inches
Fragrance:	Strong, minty aroma
Pest-Repelling Properties:	Repels mosquitoes, flies, cockroaches, and ants due to the compound nepetalactone.
Additional Benefits:	Attracts pollinators like bees and butterflies; loved by cats for its stimulating effects.
Uses:	Ideal for herb gardens, borders, or as a natural insect deterrent in outdoor seating areas and patios.

11. Sage

Sage’s earthy aroma repels mosquitoes and cabbage moths. It’s an excellent addition to herb gardens and can be burned as a natural insect-repelling incense during outdoor gatherings. Sage prefers full sun and well-drained soil.

Scientific Name:	Salvia officinalis
Plant Type:	Perennial herb
Ideal Growing Zones:	USDA zones 4–8
Sunlight Requirements:	Full sun
Soil Preferences:	Well-drained, sandy or loamy soil with a slightly acidic to neutral pH
Height:	Typically 12–30 inches
Fragrance:	Earthy, herbal aroma
Pest-Repelling Properties:	Repels mosquitoes, cabbage moths, and carrot flies due to its strong scent and essential oils.
Additional Benefits:	Attracts beneficial pollinators like bees and butterflies; offers medicinal and culinary uses.
Uses:	Ideal for herb gardens, companion planting near vegetables, or as a natural deterrent in ornamental borders and garden beds.

12. Alliums

Alliums, including garlic, chives, and onions, are excellent at repelling aphids, slugs, and carrot flies. They’re perfect for vegetable gardens, as they protect neighboring plants while providing edible benefits. Plant alliums in sunny locations for best results.

Scientific Name:	Allium spp.
Plant Type:	Perennial bulb
Ideal Growing Zones:	USDA zones 3–9
Sunlight Requirements:	Full sun to partial shade
Soil Preferences:	Well-drained soil with a neutral to slightly alkaline pH
Height:	Typically 6–48 inches, depending on the variety
Bloom Colors:	Purple, pink, white, and yellow, depending on the species
Pest-Repelling Properties:	Repels aphids, slugs, carrot flies, and cabbage worms due to their strong onion-like smell.
Additional Benefits:	Beautiful globe-shaped flowers; attracts pollinators like bees while deterring harmful pests.
Uses:	Ideal for vegetable gardens, ornamental flower beds, or as companion plants to protect crops like carrots, tomatoes, and lettuce.

13. Nasturtiums

Nasturtiums are beautiful flowers that repel aphids, whiteflies, and squash bugs. They’re ideal for planting near vegetables like tomatoes and cucumbers. Nasturtiums are low-maintenance and thrive in full sun and well-drained soil.

14. Thyme

Thyme is a hardy herb that deters mosquitoes and cabbage worms. It’s an excellent ground cover or border plant and can be used fresh in cooking. Thyme thrives in sunny locations with well-drained soil.

15. Bay Laurel

Bay Laurel, also known as Bay Leaf, repels flies, moths, and roaches. It’s a slow-growing shrub that thrives in containers or garden beds. Place it near kitchen gardens or patios for easy access to its leaves and pest-repelling properties.

Tips for Maximizing Insect-Repelling Plants

1. Companion Planting: Place insect-repellent plants near vegetables or areas prone to pests for added protection.

2. Strategic Placement: Position plants near entryways, patios, or windows to keep bugs away from your home.

3. Group Planting: Combine multiple insect-repellent plants for a layered defense against various pests.

4. Regular Maintenance: Keep plants healthy by watering appropriately, pruning, and removing dead foliage.

Benefits of Using Insect-Repellent Plants

• Eco-Friendly: Reduces the need for chemical pesticides.

• Multi-Purpose: Many plants are both decorative and edible.

• Low Maintenance: Most pest-repelling plants are hardy and require minimal care.

• Pollinator-Friendly: Attracts beneficial insects like bees and butterflies.

By incorporating these 15 insect-repellent plants into your garden, you can create a beautiful, functional, and pest-free outdoor space. Enjoy the benefits of natural pest control while enhancing the overall appeal of your garden.