Mosquitoes are universally disliked, and rightly so. They can quickly ruin any outdoor gathering faster than you can light a citronella candle. Moreover, many bug sprays, especially those containing harsh chemicals, can be harmful to both humans and the environment.
Fortunately, certain plants can come to the rescue by repelling mosquitoes and enhancing your summer outdoor experiences. These plants often contain natural oils like citronella that act as pest repellents.
However, simply planting them is not enough. To activate their mosquito-repelling properties, you’ll need to handle the plants—rubbing, crushing, or cutting them to release their oils.
While several plants claim to have these repellent abilities, and some may even deter other pests, not all are scientifically proven effective against mosquitoes. Let’s explore some plants that have demonstrated mosquito-repelling properties.
Citronella Grass
Citronella grass, scientifically known as Cymbopogon nardus, is prized for its robust lemony aroma that naturally repels mosquitoes. This scent, reminiscent of mosquito-repellent candles, comes from the plant’s rich essential oils like citronellol and geraniol. Not only does it mask smells attracting mosquitoes, but it actively deters them.
This hardy perennial grows well in zones 9-11, reaching 12-24 inches tall and wide. It thrives in full sun and well-drained soil, suiting garden beds and containers. While similar in appearance and scent to lemongrass, citronella grass is a distinct species.
To release the citronella oil, crush or cut the grass blades and apply the fresh oil directly to clothes or skin for mosquito protection. Beyond repelling mosquitoes, citronella grass is ornamental, growing up to 6 feet tall and 4 feet wide with ample space. Its lemony fragrance also repels whiteflies, making it a great companion for flowering plants.
Outside gardens, citronella grass has various uses. In Asia, it’s utilized as a spice and traditional medicine for headaches, fever, and lice. Its antibacterial and antifungal properties make it valuable for homemade cleaners. Citronella grass proves versatile, ready to combat mosquitoes on patios.
Lemongrass
More than a culinary herb, lemongrass (Cymbopogon citratus) is a robust mosquito repellent. Rich in geranial and citral essential oils proven to deter mosquitoes, crushing its leaves and applying the oil topically creates an effective barrier.
Experts praise lemongrass for its ornamental value and practical mosquito control for patios and gardens. Its vibrant green fronds emit a refreshing citrus scent from citronellal—a key repellent component.
Quick lemongrass facts:
- Name: Lemongrass (Cymbopogon citratus)
- Hardiness Zones: 10-11
- Light Needs: Full sun
- Mature Size: 2-4 feet tall and wide
- Note: Toxic to pets
Lemongrass brightens gardens with lush greenery while repelling mosquitoes 49-79% effectively. It thrives in full sun and large containers, achieving a bushy appearance. Use its leaves for mosquito protection or ornamental flair.
Lavender
Lavender’s captivating aroma not only delights but effectively repels mosquitoes like DEET, thanks to potent oils like linalool. This drought-resistant, low-maintenance perennial is a gardener’s dream.
Plant expert Linda Vater notes, “Lavender thrives in dry summer heat, its wonderful fragrance repelling mosquitoes while attracting pollinators with vibrant purple flowers.”
Lavender’s oil may impair mosquitoes’ sense of smell for enhanced protection. Use crushed leaves, distilled oil on skin/candles, or combine with citronella.
Lavender facts:
- Botanical Name: Lavandula spp.
- Hardiness Zones: 5-9
- Light Needs: Full sun
- Mature Size: 2-3 feet tall, 2-4 feet wide
- Caution: Toxic to dogs and cats
For maximum mosquito deterrence, crush lavender’s leaves or flowers to release fragrance. Make lavender-infused oil for topical use or candles. Its resilience guards against pests while attracting pollinators.
Catnip/Catmint
Catnip (Nepeta cataria), a mint family member, does more than entice cats—it’s packed with nepetalactone, repelling mosquitoes up to 10x more effectively than DEET.
This hardy, sun-loving perennial is easy to grow but can spread vigorously, so containers may contain excess growth. Despite dominating garden spaces, catnip adds decorative white/purple blooms while deterring mosquitoes.
Catnip overview:
- Botanical Name: Nepeta cataria
- Hardiness Zones: 3-7
- Light Needs: Full sun
- Mature Size: Around 2-3 feet tall and wide
- Note: Non-toxic but overstimulating for cats
To utilize catnip’s mosquito repellent powers, harvest leaves and crush to release oils or steep in water for a spray around seating areas. Its robust growth makes it an aesthetic yet functional perennial deterring pests while attracting cats.
Marigolds
Vibrant and easy to grow, marigolds offer more than just decorative appeal—they’re a natural deterrent to mosquitoes and garden pests. Planted in containers near patios or entrances, these flowers emit a scent that repels unwanted insects. Beyond aesthetics for borders and veggie patches, marigolds are prized for pest control.
Marigolds (Tagetes spp.), common garden plants, excel at repelling aphids, whiteflies, squash bugs, and tomato hornworms. Their secret weapon is a natural insecticidal compound called pyrethrum, which gives marigolds their distinct scent.
Quick marigold facts:
- Botanical Name: Tagetes spp.
- Type: Annual
- Light Needs: Full sun
- Mature Size: 4-48 inches tall, 6-24 inches wide
Low-maintenance marigolds thrive in full sun, blooming brightly all season. Deadheading spent flowers promotes continued blooming. Their cheerful blooms make outdoor living spaces enjoyable by reducing mosquitoes, while protecting veggie gardens from pests without chemicals.
Incorporating marigolds offers dual benefits: splashes of color and a practical, natural way to deter mosquitoes and other pests in gardens or patio pots.
Mint
Peppermint’s (Mentha piperita L.) invigorating scent not only delights but deters mosquitoes. Its potent aroma makes it an excellent natural insect repellent, says Carrie Spoonemore of Park Seed. Grow peppermint in containers to prevent invasive spreading.
Mint enhances culinary gardens with ease and versatility. All varieties share a robust minty fragrance that repels mosquitoes and pests.
Mint overview:
- Common Name: Mint (Mentha spp.)
- Hardiness Zones: 3-11
- Light Needs: Full sun to partial shade
- Mature Size: 12-18 inches tall, 18-24 inches wide
Among mints, peppermint has the most potent mosquito-repelling scent. Research shows peppermint oil applied topically protects against mosquitoes for up to 2 hours.
A non-toxic pest deterrent, mint repels flies and ants too. It thrives in pots for easy harvesting or drying leaves for indoor pest control. Simple mint leaf tea can create a homemade mosquito spray.
Caution with pennyroyal mint—it’s harmful to humans and pets despite repellent reputation. Always use safe, effective mint varieties.
Lantana
Lantana flower extracts mixed with coconut oil offer impressive 94.5% protection against mosquitoes for up to 2 hours. While the plant itself has a subtler aroma, lantana still acts as an effective natural mosquito barrier in gardens and patios.
Lantana facts:
- Botanical Name: Lantana camara
- Hardiness Zones: 7-11
- Light Needs: Full sun
- Mature Size: 1-6 feet tall, 3-5 feet wide
- Note: Toxic to humans and pets
A vibrant perennial shrub, lantana adds color while attracting pollinators like hummingbirds and repelling mosquitoes. Its aromatic leaves emit a strong scent, especially when warmed by the sun, providing 27-42% mosquito protection in outdoor areas.
Research highlights lantana’s role in combating mosquito-borne diseases like malaria by shortening mosquito lifespans and reducing reproduction—a natural, economical population control.
For optimal repellency, place lantana in high-traffic areas. Leaves and flowers release a citronella-like scent when disturbed. Use lantana in floral arrangements indoors too.
Dried, crushed lantana leaves can be burned for smoke to deter mosquitoes, but avoid skin contact with oils that may irritate. This versatile plant combines beauty and functionality.
Basil
Don’t just enjoy basil’s culinary delights—this herb naturally deters mosquitoes and flies with its robust aroma from the leaves. Thriving in moist, well-drained soil and sunlight, basil suits garden beds and containers, allowing you to experiment with varieties for diversity and pest control.
While prized for enhancing dishes worldwide, basil’s utility extends beyond the kitchen. Its pretty flowers attract pollinators, but few realize basil can repel mosquitoes thanks to compounds toxic to them and their larvae. While concentrated basil oil packs potency, even the leaves alone have repellent properties.
Among basil varieties like Thai, lemon, and cinnamon, the most pungent-scented tend to be most effective against mosquitoes. Cinnamon basil’s strong aroma can be harnessed by crushing leaves or making a repellent spray.
Basil facts:
- Botanical Name: Ocimum basilicum
- Hardiness: Generally grown annually
- Light Needs: Full sun to partial shade
- Mature Size: 18-24 inches tall and wide
Incorporating basil into outdoor spaces provides fresh herbs and natural mosquito deterrence. Lemon, cinnamon, and African blue types particularly repel pests. Burn leaves or rub them on skin before going outdoors for added protection.
Rosemary
Rosemary stands out for its natural mosquito-repelling abilities, highly recommended by the New York Botanical Garden and PlantShed.
Scientifically known as Salvia rosmarinus, rosemary’s needle-like leaves are packed with aromatic oils that release an invigorating scent when brushed. For stronger mosquito deterrence, crush the leaves and rub onto clothes or toss stems into a fire pit for fragrant, bug-deterring smoke.
Rosemary overview:
- Botanical Name: Salvia rosmarinus
- Hardiness Zones: 8-10
- Light Needs: Full sun
- Mature Size: 2-6 feet tall, 2-4 feet wide
Rosemary’s woody aroma enhances dishes while deterring mosquitoes, cabbage moths, and carrot flies. It thrives in hot, dry climates and containers—ideal for cold winters. Its versatility allows shaping into borders or decorations.
The pleasant rosemary scent attracts pollinators while repelling mosquitoes. Varieties like Chef’s Choice Culinary Rosemary with high essential oil content excel at mosquito control while making charming porch or low-maintenance border plantings.
A sun-lover, rosemary likes well-drained soil and drying between waterings. Having it on the patio enhances summer ambiance while naturally deterring pests—a flavorful and functional addition.
Bee Balm
Aiming to attract beneficial pollinators like bees and butterflies while deterring pesky mosquitoes? Consider adding bee balm, also known as Monarda or horsemint, to your garden.
This versatile perennial charms with vibrant, long-lasting flowers in shades of red, pink, lavender, white, and purple. Its leaves emit a scent that mosquitoes find repellent, especially when rubbed to release aromatic oils.
Key facts about bee balm:
- Common Name: Bee balm (Monarda spp.)
- Hardiness Zones: 3-9
- Light Needs: Full sun to partial shade
- Mature Size: 10-48 inches tall, 10-36 inches wide
Bee balm attracts pollinators like bees, butterflies, and hummingbirds while naturally repelling mosquitoes. Unlike plants requiring crushed foliage, bee balm continuously releases fragrant oils as it grows, providing beauty and pest deterrence. Plant it as borders, in beds, or containers for color and functionality.
Floss Flower (Ageratum)
For a natural mosquito repellent, consider planting Ageratum, the floss flower. This annual flaunts feathery blue blooms and emits coumarin, a compound known to repel mosquitoes. Perfect for patios or decks to create a mosquito-free zone.
Ageratum overview:
- Common Name: Floss flower (Ageratum houstonianum)
- Hardiness: Typically grown as an annual
- Light Needs: Full sun to partial shade
- Mature Size: 6-36 inches tall, 6-18 inches wide
While traditionally a low-growing bedding plant, newer cultivars like ‘Blue Horizon’ can reach 2 feet, offering versatility. However, Ageratum contains coumarin, toxic if ingested by pets or humans, so keep it out of reach.
Sage
For natural mosquito deterrence and garden flair, consider sage (Salvia officinalis). This robust perennial herb thrives with little fuss while exuding a potent aroma that repels mosquitoes. Ideal for garden beds and containers.
Sage facts:
- Common Name: Sage (Salvia officinalis)
- Hardiness Zones: 4-10
- Light Needs: Full sun
- Mature Size: 2-2.5 feet tall, 2-3 feet wide
Sage’s strong scent makes it an effective mosquito repellent. Crush leaves and apply to skin/clothing, or burn dried leaves for a bug-free area. Divide sage every few years for vigor. Plant it near pest-prone veggies for protection or in sunny, well-drained beds and pots.
Ornamental Onions (Alliums)
For charm and mosquito deterrence, consider alliums – ornamental onions. These plants boast striking, globe-shaped flowers and emit a subtle sulfur scent that repels mosquitoes unnoticed by humans.
Allium facts:
- Common Name: Ornamental onion (Allium spp.)
- Hardiness Zones: 4-10
- Light Needs: Full sun
- Mature Size: 1-4 feet tall, 3-10 inches wide
- Note: Toxic to humans and pets
Easy-to-grow alliums need minimal care. Plant different varieties blooming spring to summer for continuous mosquito deterrence and visual interest. Best planted in fall for winter chilling, but can also go in spring. Use well-draining soil and plant bulbs at recommended depths for showy blooms.
Scented Geraniums
For natural mosquito deterrence, scented geraniums (Pelargonium) offer a citrusy, citronella-like fragrance effective at keeping mosquitoes away. Perfect for containers near seating areas and paths.
Scented Geranium Overview:
- Common Name: Scented geranium (Pelargonium spp.)
- Hardiness Zones: 10-11 (often grown as annuals in cooler areas)
- Light Needs: Full sun to partial shade
- Mature Size: 1-3 feet tall, 1-2 feet wide
- Note: Toxic to humans and pets
Scented geraniums come in diverse varieties bred for unique, potent fragrances. Lemon-scented types excel at repelling mosquitoes. Crush or rub leaves to release essential oils. For colder climates, overwinter indoors or propagate from cuttings. A functional repellent and ornamental addition.
Thyme
Thyme isn’t just a culinary herb; it’s a powerful natural mosquito repellent. Varieties like red creeping thyme are particularly effective at deterring these pesky insects. To tap into thyme’s mosquito-repelling powers, simply crush its leaves to release the aromatic oils.
You can spread these crushed stems around your outdoor lounging areas or even apply the leaves directly to your skin or clothes. Additionally, burning thyme leaves can provide impressive 85 to 90 percent protection against mosquitoes for up to 90 minutes.
Here’s a quick overview of growing thyme in your garden:
- Common Name: Thyme (Thymus spp.)
- Hardiness Zones: 5-9
- Light Requirements: Full sun
- Mature Size: Grows 6-12 inches tall and wide
Among the various types, creeping thyme stands out for its effectiveness and versatility as a mosquito repellent. This low-growing plant makes an excellent ground cover or can be nestled between stepping stones, adding both beauty and functionality.
It’s durable enough to withstand light foot traffic, which conveniently helps release its mosquito-repelling oils when the leaves are crushed underfoot.
Whether planted in pots or used to edge your garden beds, thyme offers a natural, fragrant way to enhance your outdoor spaces while keeping mosquitoes at bay.
Eucalyptus
The ‘Silver Drop’ variety of eucalyptus (Eucalyptus gunnii) is a gem for both container gardening and cut flower arrangements, thanks to its elegant silvery foliage. But this plant isn’t just about good looks; its distinct eucalyptus scent is a natural mosquito repellent.
To maximize its bug-deterring properties, ensure the plant receives plenty of sunshine, which helps warm the leaves and release their terpenoid compounds. You can also burn a few leaves to spread the scent further.
Here’s what you need to know about growing eucalyptus:
- Common Name: Eucalyptus (Eucalyptus spp.)
- Hardiness Zones: 8-11
- Light Requirements: Full sun
- Mature Size: Ranges from 6 to 53 feet tall and 2 to 15 feet wide, depending on variety
The ‘Silver Drop’ eucalyptus is particularly suitable for containers in smaller spaces or cooler climates. It grows to a manageable 24 to 36 inches tall and 12 to 16 inches wide, making it perfect for lining up pots to form a living barrier against mosquitoes. Although hardy in Zones 9-10, treat it as an annual in cooler zones to enjoy its full potential each year.
If you’re looking for a slightly different option, consider Eucalyptus pulverulenta ‘Baby Blue’, known for its compact growth and robust scent. This variety is ideal for small spaces and continues to act as an effective mosquito deterrent, keeping your outdoor areas comfortable and pest-free.
Hummingbird Mint (Anise Hyssop)
Hummingbird mint, or anise hyssop (Agastache), is a magnet for wildlife, attracting hummingbirds, butterflies, bees, and other beneficial insects with its vibrant blooms. Available in various hues like the purple ‘Blue Boa’ variety, the plant emits a delightful licorice scent.
Gardeners often rub the leaves on their skin as a natural mosquito repellent. This perennial thrives in garden beds and containers in Zones 5-9. Additionally, its dried leaves and flowers can add a unique flavor to teas, baked goods, and desserts.
Wormwood
Wormwood (Artemisia absinthium) brings a stunning silver glow that enhances the colors of nearby flowers in your garden or floral arrangements. The plant’s distinctive leaves exude a potent aroma that ranges from antiseptic to pungent, or even mildly pleasant, depending on individual perception.
This scent makes wormwood an effective natural repellent, deterring mosquitoes and some larger pests. For an attractive addition to your garden beds, consider varieties like ‘Powis Castle’, or opt for sweet Annie (Artemisia annua) if you’re looking to create beautiful dried flower displays.
Society Garlic
If you’re determined to fend off mosquitoes, consider planting garlicky varieties like society garlic (Tulbaghia violacea) in your garden and pots. Known for its ability to repel mosquitoes up to 20 feet away, this plant is a top choice. It thrives as a flowering ground cover in sunny spots with well-draining soil or nestled among other perennials.
For added visual interest, opt for varieties with decorative leaves like ‘Silver Lace,’ ‘Variegata,’ or ‘Tricolor,’ which display pink or lavender flowers. This hardy perennial is suitable for Zones 7-10. In cooler climates, grow it in a container and move it indoors to a cool area to overwinter.
Lemon Verbena
Lemon verbena (Aloysia citrodora) is your aromatic ally in the battle against mosquitoes, thanks to its lemon-scented leaves. Crushing these leaves releases a delightful citrus fragrance. Apply the crushed leaves to your skin or clothes to send mosquitoes packing with a burst of lemon scent. This herb grows effortlessly, thriving in sunny and warm conditions.
It’s a charming addition to any garden and looks especially lovely in pots on patios—ideal for colder areas where it isn’t winter-hardy (Zones 8-11). Additionally, the dried leaves can be used to brew a delicious tea or create fragrant potpourri.
Variegated Plectranthus
If you’re familiar with variegated plectranthus, you’ll recognize its distinct aroma right away. A simple touch or a few water droplets on its leaves are enough to unleash its strong scent. This particular fragrance is excellent for keeping mosquitoes and other pests at bay.
Known by various names such as Madagascar spur flower, Swedish ivy, and mintleaf, this plant is scientifically called Plectranthus madagascariensis ‘Marginatus’. When looking for it, check for the unique felted leaves that carry that potent fragrance—you’ll know it’s the right one by the smell.
Neem
The neem tree (Azadirachta indica) is a versatile evergreen native to India that thrives in the warmer regions of the United States, such as southern Florida, Arizona, and California. Known for its resilience in hot, dry climates, the neem tree’s seeds contain volatile oils traditionally used not only for repelling mosquitoes but also for various other purposes.
Recent research supports these traditional uses, revealing that a mixture of just 2% neem oil combined with coconut oil can effectively repel mosquitoes when applied to the skin. This natural solution offers a safe and environmentally friendly alternative to chemical repellents, tapping into ancient wisdom with modern scientific backing.
Lemon Balm
Lemon balm (Melissa officinalis L.) is a perennial herb celebrated for its delightful lemon-mint aroma. This scent not only makes it a favored choice for gardens but also serves as a natural mosquito repellent. During the summer months, lemon balm enhances its appeal with beautiful white flowers that draw in pollinators like bees and butterflies.
Growing lemon balm:
- Zones: 4 through 9
- Size: 24 to 36 inches tall, 18 to 24 inches wide
- Growing Conditions: Full sun, rich, well-draining soil
This herb adds a burst of fragrance to your garden while creating a pollinator-friendly environment, all while keeping those pesky mosquitoes at bay.
Fennel
Fennel (Foeniculum vulgare) serves a dual purpose in gardens as both a flavorful herb and a vegetable with crunchy bulbs. Its delicate, feathery leaves emit a strong anise-like scent that naturally repels mosquitoes. Typically grown as an annual, fennel is actually a short-lived perennial.
Beyond its mosquito-deterring capabilities, fennel plays a vital ecological role. It acts as a host plant for swallowtail butterfly caterpillars while its blossoms attract various beneficial insects, including bees.
Growing fennel:
- Name: Fennel (Foeniculum vulgare)
- Hardiness Zones: 4-9
- Light Requirements: Full sun
- Mature Size: 4-6 feet tall, 1-3 feet wide
This plant not only enhances your garden with its utility and vibrant presence but also supports local wildlife, making it a great addition to any green space.
Garlic
While garlic may not directly repel mosquitoes when planted in your garden, it certainly has its perks—especially if you’re interested in DIY solutions. Growing garlic allows you to harvest fresh bulbs that can be used to make your own insect repellent.
The key is in the allicin, a compound that emits garlic’s signature strong odor when the cloves are crushed or chopped. This pungent aroma is what helps keep the bugs at bay.
Growing garlic:
- Name: Garlic (Allium sativum)
- Hardiness Zones: 4-9
- Light Requirements: Full sun
- Mature Size: 12-18 inches tall, 6-12 inches wide
- Note: Garlic is toxic to pets
Garlic takes about nine months from planting to harvest, making it a relatively long-term commitment for your garden. However, the payoff is not just in the pest repellent you can create but also in the fresh, flavorful cloves that enhance your cooking.
Pennyroyal
Pennyroyal, also known as Mentha pulegium, is a robust herb that shares a family tree with spearmint, mirroring its fresh, minty scent. This plant is notably effective at keeping bugs at bay, earning it the nickname ‘mosquito plant’ due to its strong repellent qualities.
While it may not win any beauty contests as an ornamental plant, pennyroyal excels as a low-maintenance groundcover. The aroma it releases when stepped on naturally drives mosquitoes away.
Growing pennyroyal:
- Name: Pennyroyal (Mentha pulegium)
- Hardiness Zones: 6-9
- Light Requirements: Full sun to partial shade
- Mature Size: 6-12 inches tall, 3-6 feet wide spread
- Note: Pennyroyal is toxic to humans and pets
Ideal for those looking for a practical and natural pest control solution, pennyroyal not only covers your ground but also keeps the mosquitoes at bay with every step.
Mosquito Plant Care
To effectively deter mosquitoes and keep your garden thriving, consider these practical tips. Regularly empty any standing water from containers, as even a small amount can become a breeding ground for mosquito larvae.
After emptying, flip the containers upside down to prevent mosquitoes from laying eggs. Also, ensure your rain barrels are covered and gutters are cleared regularly.
Be mindful of your watering habits; overwatering can create puddles that attract mosquitoes. Water your plants only when necessary. Adding a fountain to garden water features like ponds or pools can help discourage mosquitoes by keeping the water moving. For birdbaths, consider models with built-in fountain features.
Regularly clear your garden of fallen leaves and dead plants, which can trap water and create ideal habitats for mosquitoes.
Plant mosquito-repelling herbs like citronella, lavender, or lemongrass around the perimeter of your garden and in social areas like patios or near fire pits. Not only do these plants help keep mosquitoes away, but they also add a pleasant aroma and enhance the beauty of your outdoor spaces.
How to Prevent Mosquito Bites Without Repellent
Creating a mosquito-free zone in your yard can significantly enhance your outdoor enjoyment. Here’s how you can keep these pesky insects at bay without reaching for chemical repellents.
First, dress in long-sleeved shirts and pants to shield your skin. Adding a hat with a protective net can cover your face and neck too. This simple change in attire can be your first line of defense against mosquito bites.
Keeping your yard tidy is crucial. Remove any old toys, planters, buckets, or trash bins that can hold water, as these can become breeding grounds for mosquitoes. By eliminating these potential breeding sites, you’re cutting off their ability to multiply.
Timing is everything when it comes to dodging mosquitoes, as they tend to be most active during dawn and dusk. If possible, plan your outdoor activities outside these peak times to minimize encounters with these biting insects.
For a more natural approach, consider burning citronella coils or candles. These affordable options are effective at keeping mosquitoes away. Light them up during outdoor gatherings or while relaxing by the fire pit, and enjoy a bug-free environment. The scent of citronella is a natural deterrent for mosquitoes and can make your time outdoors much more pleasant.
While outdoor insecticides can be a strong ally for those who don’t mind using chemicals, it’s important to follow the product instructions carefully to ensure safe and effective use. Aerosols, foggers, and surface sprays can target mosquitoes in the air and on resting surfaces, significantly reducing their numbers.
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