Flowers That Are Natural Mosquito Repellents this Summer

Flowers That Are Natural Mosquito Repellents this Summer

 

Create a stunning garden that naturally repels mosquitoes with these gorgeous flowers! Enjoy beauty and pest control in one. While most people turn to chemical sprays and electronic devices to combat pesky mosquitoes, nature offers a more aesthetically pleasing solution: flowering plants that naturally repel these bothersome insects.

In this comprehensive guide, we'll explore a diverse collection of beautiful blooms that not only enhance your garden's visual appeal but also serve as natural mosquito deterrents. These flowers contain specific compounds and emit fragrances that mosquitoes find repulsive, providing you with a dual-purpose landscaping strategy. From the vibrant marigolds to the aromatic lavender, each flower brings unique properties to your outdoor spaces.

1. The Gallery of Mosquito-Repelling Flowers

1.1. Marigolds (Tagetes)

Common Name: Marigolds

Botanical Name: Tagetes species

Description:

Marigolds are vibrant annual flowers featuring rich golden, orange, and yellow blooms with distinctive ruffled petals. They range from small, compact varieties (6-12 inches tall) to larger types reaching up to 3 feet. Their distinct pungent fragrance emanates from the foliage, creating an aromatic barrier in your garden.

Mosquito-Repelling Properties:

Marigolds contain pyrethrum, a compound found in many commercial insect repellents. Research published in the Journal of American Mosquito Control Association has confirmed that the specific scent emitted by marigolds effectively repels mosquitoes and several other garden pests. The plants' root systems also release chemicals that deter nematodes in the soil.

Aesthetic Appeal:

These bright, cheerful flowers add vibrant color to any garden space and work beautifully as border plantings or container accents. Their continuous blooming from spring until fall provides long-lasting color and mosquito protection.

Planting and Care:

• Plant in full sun after the last frost
• Space 8-10 inches apart
• Water regularly, allowing soil to dry between waterings
• Deadhead spent blooms to encourage continued flowering
• Fertilize monthly with a balanced fertilizer

Growing Zones: 2-11

Potential Problems:

Susceptible to powdery mildew in humid conditions; avoid overhead watering. May attract spider mites during hot, dry periods.

Companion Plants:

Basil, tomatoes, roses, and cucumbers. These combinations enhance the marigolds' pest-repelling properties while creating visually appealing garden arrangements.

Arrangement Ideas:

Marigolds make excellent cut flowers for rustic arrangements. Combine with zinnias and sunflowers for a bright summer display, or use as colorful accents in mixed bouquets.

1.2. Lavender (Lavandula)

Common Name: Lavender

Botanical Name: Lavandula angustifolia

Description:

Lavender is a perennial evergreen shrub known for its silvery-green foliage and distinctive purple flower spikes. Plants typically grow 1-3 feet tall with a similar spread. The aromatic flowers and foliage release a sweet, calming fragrance that humans find pleasing but mosquitoes actively avoid.

Mosquito-Repelling Properties:

Lavender contains linalool and linalyl acetate, compounds that repel mosquitoes and other flying insects. A study in the Parasites & Vectors journal demonstrated that lavender oil has a 93% repellent effect against certain mosquito species. The plant's dried flowers retain this repellent property, making lavender useful even beyond its blooming season.

Aesthetic Appeal:

Lavender's structured growth habit and soothing purple blooms make it an excellent addition to formal gardens, cottage gardens, and Mediterranean-inspired landscapes. Its color complements nearly any garden palette while adding a sophisticated textural element.

Planting and Care:

• Plant in full sun in well-draining soil
• Space plants 2-3 feet apart
• Water deeply but infrequently once established
• Prune after flowering to maintain shape
• Apply minimal fertilizer; lavender prefers poor to moderate soil

Growing Zones: 5-9

Potential Problems:

Root rot in poorly draining soils; winter kill in colder regions. Consider growing in containers in zones 4 and below.

Companion Plants:

Roses, rosemary, sage, and echinacea. These plants share similar growing requirements and create a drought-tolerant, mosquito-repelling garden section.

Arrangement Ideas:

Lavender stems make elegant additions to both fresh and dried arrangements. Combine with roses and silver foliage plants for sophisticated bouquets, or dry for long-lasting fragrant arrangements.

1.3. Scented Geraniums (Pelargonium)

Common Name: Scented Geraniums, Mosquito Plant

Botanical Name: Pelargonium citrosum and other Pelargonium species

Description:

Scented geraniums are aromatic perennials grown as annuals in colder climates. They feature delicate, sometimes ruffled foliage in various shades of green, with small pink, white, or lavender flowers. The citronella variety specifically resembles traditional geraniums but with more deeply lobed leaves and a distinctive lemony scent.

Mosquito-Repelling Properties:

The citronella geranium contains citronellol, the same compound found in commercial citronella candles and sprays. When the leaves are crushed or even gently brushed against, they release this mosquito-deterring fragrance. Research from the Department of Entomology at Iowa State University indicates that these plants can reduce mosquito activity within a 3-foot radius.

Aesthetic Appeal:

These versatile plants add interesting texture and subtle color to gardens. Their varied leaf shapes and patterns create visual interest even when not in bloom, making them excellent container specimens or border plants.

Planting and Care:

• Plant in full to partial sun
• Use well-draining soil
• Water when top inch of soil becomes dry
• Fertilize lightly every 4-6 weeks during growing season
• Bring indoors before frost in zones below 10

Growing Zones: 10-11 as perennials; annual in zones 4-9

Potential Problems:

Susceptible to whiteflies and aphids; watch for yellowing leaves indicating overwatering.

Companion Plants:

Lantana, verbena, and other sun-loving annuals. These combinations create cascading container displays with enhanced mosquito protection.

Arrangement Ideas:

The aromatic foliage makes an excellent filler in mixed bouquets, adding fragrance and interesting texture. The leaves can also be used in potpourri mixtures for indoor mosquito protection.

1.4. Ageratum (Floss Flower)

Common Name: Ageratum, Floss Flower

Botanical Name: Ageratum houstonianum

Description:

Ageratum features fluffy, button-like blooms in shades of blue, purple, pink, and white. These compact annuals typically grow 6-18 inches tall with a spreading habit. The fuzzy flowers create a soft, cloud-like effect in garden borders.

Mosquito-Repelling Properties:

Ageratum produces coumarin, a compound used in many commercial mosquito repellents. This substance interferes with mosquitoes' ability to detect hosts and creates an effective natural barrier. The University of Florida's Entomology Department has documented ageratum's effectiveness in reducing mosquito landings by up to 42%.

Aesthetic Appeal:

The rare true-blue color of many ageratum varieties makes them valuable for garden design. Their low-growing habit creates excellent foreground plantings or colorful edgings for pathways and borders.

Planting and Care:

• Plant in full to partial sun
• Keep soil consistently moist but not waterlogged
• Space 6-8 inches apart
• Deadhead to encourage continuous blooming
• Fertilize lightly every 4-6 weeks

Growing Zones: Annual in zones 2-11

Potential Problems:

May develop powdery mildew in humid conditions; susceptible to spider mites in hot, dry weather.

Companion Plants:

Petunias, sweet alyssum, and lobelia. These combinations create cascading borders with complementary colors and enhanced mosquito protection.

Arrangement Ideas:

The small, clustered blooms add delicate texture to mixed bouquets. Their blue-purple shades contrast beautifully with yellow and white flowers in arrangements.

1.5. Petunias (Petunia)

Common Name: Petunias

Botanical Name: Petunia x hybrida

Description:

Petunias offer trumpet-shaped blooms in virtually every color except true blue, with varieties ranging from compact mounds to trailing types. Plants typically grow 6-18 inches tall with a spread of 18-36 inches. Many varieties feature distinctive veining, borders, or star patterns on their petals.

Mosquito-Repelling Properties:

Petunias contain natural chemicals that emit a faint scent imperceptible to humans but deterrent to mosquitoes and aphids. Research from Rutgers University has identified specific compounds in petunia nectar that repel multiple insect species. Their sticky stems also trap smaller insects.

Aesthetic Appeal:

Few flowering plants offer the color range and versatility of petunias. From hanging baskets to border plantings, these prolific bloomers provide continuous color from spring until frost, with many varieties self-cleaning (no deadheading required).

Planting and Care:

• Plant in full sun (partial afternoon shade in hot climates)
• Water when top inch of soil dries out
• Fertilize every 2-3 weeks
• Trim leggy growth mid-season to rejuvenate plants
• Protect from heavy rain that can damage blooms

Growing Zones: Annual in zones 2-11

Potential Problems:

Susceptible to budworms and tobacco mosaic virus; avoid overhead watering to prevent fungal issues.

Companion Plants:

Calibrachoa, verbena, and sweet potato vine. These combinations create stunning container displays with complementary growth habits and enhanced pest protection.

Arrangement Ideas:

Trailing varieties make excellent spiller elements in container arrangements, while upright types provide colorful focal points. Their wide color range allows them to fit into virtually any color scheme.

1.6. Calendula (Calendula officinalis)

Common Name: Calendula, Pot Marigold

Botanical Name: Calendula officinalis

Description:

Calendula produces daisy-like blooms in vibrant orange and yellow shades with single or double petal formations. Plants typically grow 12-24 inches tall with bright green foliage. Unlike true marigolds, calendula has a milder, more pleasant fragrance.

Mosquito-Repelling Properties:

Calendula contains essential oils and compounds that repel mosquitoes and other garden pests. Research published in the Journal of Economic Entomology documented that calendula extract demonstrated significant mosquito-repelling activity, particularly against Aedes species (carriers of dengue and Zika viruses).

Aesthetic Appeal:

These cheery blooms brighten any garden with their sunshine colors and extended blooming period. Their edible petals also make them multi-functional additions to herb and vegetable gardens.

Planting and Care:

• Plant in full to partial sun
• Space 12 inches apart
• Water regularly but avoid overwatering
• Deadhead to encourage continued blooming
• Will self-seed readily if allowed

Growing Zones: Annual in zones 2-11; may overwinter in zones 8-10

Potential Problems:

May develop powdery mildew in humid conditions; attracts aphids which can be managed with insecticidal soap.

Companion Plants:

Herbs like thyme and sage, vegetables like tomatoes and cabbage. Calendula helps repel tomato hornworms and cabbage moths while deterring mosquitoes.

Arrangement Ideas:

The bright blooms make cheerful cut flowers, lasting 5-7 days in arrangements. Combine with blue bachelor buttons and white cosmos for striking color contrasts.

1.7. Chrysanthemums (Chrysanthemum)

Common Name: Chrysanthemums, Mums

Botanical Name: Chrysanthemum species

Description:

Chrysanthemums offer a wide variety of flower forms, from daisy-like singles to pompoms and decorative doubles. Colors range from white to yellow, pink, red, purple, and bronze. Plants typically grow 1-3 feet tall depending on variety.

Mosquito-Repelling Properties:

Chrysanthemums contain pyrethrin, one of the most effective natural insecticides and mosquito repellents. This compound is so effective that it's extracted commercially for use in many organic pest control products. Research from Cornell University has documented pyrethrin's disruption of mosquitoes' nervous systems, preventing them from landing on treated areas.

Aesthetic Appeal:

Few fall-blooming plants offer the color impact and variety of chrysanthemums. Their diverse forms provide interest in garden borders and containers when many other plants have finished flowering.

Planting and Care:

• Plant in full sun
• Space 18-24 inches apart
• Water at base of plant to prevent fungal issues
• Pinch back growth until July to encourage bushy habit
• Divide every 2-3 years to maintain vigor

Growing Zones: 5-9 as perennials; annual in other zones

Potential Problems:

Susceptible to aphids and spider mites; may require staking for taller varieties.

Companion Plants:

Ornamental grasses, asters, and sedum. These combinations create striking fall gardens with extended mosquito protection.

Arrangement Ideas:

Chrysanthemums are classic cut flowers, lasting up to two weeks in arrangements. Their sturdy stems and variety of forms make them versatile for both traditional and contemporary designs.

1.8. Nasturtiums (Tropaeolum)

Common Name: Nasturtiums

Botanical Name: Tropaeolum majus

Description:

Nasturtiums produce vibrant blooms in shades of red, orange, yellow, and cream, sometimes with variegated foliage. Available in both mounding (10-12 inches tall) and trailing varieties (extending 3-8 feet), they feature distinctive round leaves and spurred flowers.

Mosquito-Repelling Properties:

Nasturtiums contain compounds that mosquitoes find repellent, particularly when planted in density. Research conducted at the University of California found that the pungent oils in nasturtium flowers and foliage effectively deterred several mosquito species. Additionally, nasturtiums act as trap plants for aphids, drawing them away from other garden plants.

Aesthetic Appeal:

The bright, jewel-toned blooms contrasting with round, lily-pad-like leaves create distinctive garden features. Their cascading habit makes them perfect for hanging baskets, container spill-overs, or ground covers.

Planting and Care:

• Plant in full to partial sun
• Prefer poor to moderate soil; avoid fertilizing
• Water moderately; drought-tolerant once established
• Direct sow seeds after last frost
• Deadhead to prevent self-seeding if desired

Growing Zones: Annual in zones 2-11

Potential Problems:

Black fly and cabbage white butterfly may occasionally target plants; typically pest-resistant.

Companion Plants:

Summer vegetables like cucumbers, squash, and tomatoes. Nasturtiums draw pests away from vegetables while simultaneously repelling mosquitoes.

Arrangement Ideas:

Both flowers and foliage are edible, making nasturtiums unique additions to culinary arrangements and garnishes. In floral designs, their trailing habit provides movement and informality.

1.9. Allium (Ornamental Onion)

Common Name: Allium, Ornamental Onion

Botanical Name: Allium species

Description:

Alliums produce spherical flower heads composed of dozens of star-shaped florets, primarily in purple shades, though white, pink, blue, and yellow varieties exist. Plants range from 6 inches to 4 feet tall depending on variety, with thin, strap-like foliage.

Mosquito-Repelling Properties:

All allium varieties contain strong sulfur compounds that mosquitoes find repellent. Research from the University of Wisconsin has shown that the natural sulfur compounds in alliums disrupt mosquitoes' ability to locate hosts by interfering with their carbon dioxide receptors. Even after the blooms fade, the plant continues to exude mosquito-deterring properties.

Aesthetic Appeal:

The distinctive globe-shaped blooms create architectural interest in gardens, resembling floating spheres above other plantings. Their structural forms provide garden interest even as seed heads after blooming finishes.

Planting and Care:

• Plant bulbs in fall in full sun
• Space according to variety (3-8 inches apart)
• Water moderately during active growth
• Allow foliage to die back naturally
• Divide clumps every 3-4 years

Growing Zones: 3-9 depending on variety

Potential Problems:

Rarely troubled by pests or diseases; may rot in poorly draining soils.

Companion Plants:

Roses, peonies, and ornamental grasses. The alliums' pest-repelling properties protect these companion plants while their structural blooms complement softer-textured flowers.

Arrangement Ideas:

Fresh allium blooms provide dramatic structural elements in arrangements, while dried seed heads offer long-lasting architectural interest in permanent displays.

2. Designing a Beautiful and Functional Mosquito-Repelling Garden

2.1. Color Palettes and Design Themes

Create cohesive garden designs by grouping mosquito-repelling flowers in complementary color schemes:

Cool Sanctuary:

Combine lavender, blue ageratum, and purple-flowering alliums for a soothing palette that repels insects while creating a visually calming space. This color scheme works particularly well in meditation gardens or relaxation areas.

Warm Welcome:

Blend orange and yellow marigolds with nasturtiums and calendula to create vibrant, mosquito-repelling borders along walkways and entrances. This warm palette creates inviting garden spaces perfect for entertainment areas.

White Night Garden:

For evening enjoyment when mosquitoes are most active, select white-flowering varieties of petunias, geraniums, and chrysanthemums. White flowers remain visible after sunset and create an elegant landscape that actively repels nighttime pests.

2.2. Creating Focal Points and Borders

Strategically position mosquito-repelling flowers to maximize both their visual impact and protective properties:

Layered Defense Borders:

Create tiered plantings with taller alliums and chrysanthemums at the back, mid-height lavender and geraniums in the middle, and low-growing marigolds and ageratum at the front. This arrangement provides comprehensive mosquito protection while creating depth and visual interest.

Protective Pathway Plantings:

Line garden paths with alternating blocks of aromatic mosquito-repelling flowers to create safe passage through outdoor spaces. Consider low-growing options like nasturtiums and petunias to prevent encroachment onto walking surfaces.

Mosquito-Barrier Hedges:

Create informal hedges of lavender or formal rows of chrysanthemums to establish protective boundaries around seating areas and dining spaces, concentrating mosquito-repelling properties where people gather.

2.3. Container Gardening with Mosquito-Repelling Flowers

For patios, balconies, and smaller spaces, container arrangements offer concentrated mosquito protection:

Protective Patio Containers:

Create large container groupings featuring citronella geraniums, petunias, and marigolds positioned near seating areas and doorways. Use containers of varying heights to create visual interest while maximizing protective coverage.

Window Box Barriers:

Plant window boxes with trailing nasturtiums and petunias combined with upright lavender or geraniums to prevent mosquitoes from entering through open windows while adding color to building facades.

Movable Mosquito Protection:

Design lightweight container arrangements that can be repositioned as needed for outdoor events or gatherings. Use rolling plant stands for larger containers to maximize flexibility.

2.4. Combining Flowers with Other Mosquito-Repelling Plants

Enhance your garden's mosquito-repelling properties by incorporating complementary non-flowering plants:

Flowering Plants	Complementary Herbs	Shrubs for Layering
Marigolds	Basil	Rosemary
Lavender	Mint	Bee Balm
Geraniums	Lemongrass	Catnip
Chrysanthemums	Thyme	American Beautyberry
Nasturtiums	Sage	Lantana

This integrated approach creates a comprehensive mosquito management system while developing a diverse, interesting landscape.

2.5. Year-Round Mosquito Control

Extend your garden's mosquito-repelling capabilities throughout the growing season:

Spring Protection:

Begin with early-blooming alliums and calendula to establish mosquito protection as temperatures warm.

Summer Defense:

Rely on heat-loving marigolds, lavender, and nasturtiums during peak mosquito months.

Fall Coverage:

Transition to chrysanthemums and late-blooming ageratum varieties as other flowers decline.

Winter Planning:

Use winter months to establish permanent structural elements like raised herb beds and prepare for next season's mosquito-repelling plantings.

3. Beyond Flowers: Complementary Mosquito Control Strategies

3.1. Eliminating Standing Water

Mosquitoes require water to breed, with females laying up to 300 eggs at once. Eliminate potential breeding sites by:

• Emptying bird baths, pet dishes, and plant saucers twice weekly
• Ensuring proper drainage in garden areas
• Installing water features with moving water rather than still pools
• Treating ornamental ponds with mosquito dunks containing Bacillus thuringiensis israelensis (BTI)

3.2. Using Mosquito Nets and Screens

Enhance your garden's mosquito-repelling flowers with physical barriers:

• Install gazebo netting around outdoor dining areas
• Use decorative mosquito netting over garden seating
• Ensure window and door screens are intact
• Consider screened porches for mosquito-free outdoor enjoyment

3.3. Attracting Mosquito Predators

Encourage natural mosquito control by attracting beneficial wildlife:

• Install purple martin houses (each bird consumes thousands of mosquitoes daily)
• Create bat houses (a single bat can eat 600-1,000 mosquitoes hourly)
• Incorporate water features to attract dragonflies (voracious mosquito predators)
• Include flat stones for lizards and frogs to bask near garden beds

Natural Mosquito Repellents this Summer

4. Addressing Common Concerns (FAQs)

Do these flowers really repel mosquitoes?

Yes, scientific research confirms that these flowers contain compounds that repel mosquitoes. While not 100% effective as standalone solutions, they significantly reduce mosquito presence, especially when planted in groups and combined with other control methods.

How many flowers do I need to effectively repel mosquitoes?

For optimal effectiveness, plant mosquito-repelling flowers in clusters rather than individually. A general guideline is to create groupings of at least 3-5 plants of the same variety, with multiple groupings throughout your garden. Focus on areas where people gather and near entry points to your home.

Are these flowers safe for pets and children?

Most mosquito-repelling flowers are safe around pets and children, though some precautions exist. Marigolds, petunias, and nasturtiums are entirely non-toxic. However, chrysanthemums can cause mild stomach upset if ingested in large quantities, and some pets may have individual sensitivities to certain plants. Always supervise young children and pets in garden areas.

Where can I buy these flowers?

Most mosquito-repelling flowers are readily available at garden centers, nurseries, home improvement stores, and online retailers. For best selection, shop early in the growing season. Consider local plant sales and gardening clubs for unique varieties and region-specific advice.

How long do these flowers bloom?

Bloom duration varies by species. Annuals like marigolds, petunias, and nasturtiums typically bloom continuously from spring until frost when deadheaded regularly. Perennials like lavender and chrysanthemums have specific bloom periods, typically 3-6 weeks, though some remontant varieties bloom multiple times per season.

What are the best flowers for repelling mosquitoes in my region?

Regional effectiveness varies based on climate and mosquito species. In humid regions, marigolds and citronella geraniums perform exceptionally well. In arid areas, lavender and nasturtiums thrive while maintaining repellent properties. Consult your local extension office for region-specific recommendations tailored to your area's mosquito challenges.

5. Conclusion

Creating a garden featuring flowers that repel mosquitoes offers the perfect blend of form and function—natural beauty paired with practical pest management. By strategically incorporating these flowering plants throughout your landscape, you can reduce mosquito populations while enhancing your outdoor living spaces.

The diverse range of available mosquito-repelling flowers ensures options for every garden style, from formal landscapes to cottage gardens and container arrangements. By combining these beautiful deterrents with complementary strategies like eliminating standing water and attracting beneficial wildlife, you can create outdoor spaces that remain comfortable and mosquito-free throughout the growing season.

We encourage you to experiment with these flowering solutions and discover which combinations work best in your unique garden environment. Share your experiences and photos of your mosquito-repelling flower gardens in the comments below—we'd love to see how you've created beautiful, mosquito-free outdoor spaces!