Creating an earwig-resistant garden involves strategically placing plants these pests find disagreeable. If you’re looking for a natural solution, using plants that repel earwigs is an effective and chemical-free strategy. This guide will show you which plants work best and how to use them in your garden layout.
Earwigs can be a real nuisance. They chew on seedlings, flowers, and soft fruits. While they do eat some other pests, their damage often outweighs the benefits. The good news is that several common plants emit scents or have textures that earwigs actively avoid.
Plants That Repel Earwigs
This section details the most effective plants for keeping earwigs at bay. Each plant has unique properties that make it unappealing to these insects. By incorporating a mix of these into your beds and borders, you create a natural defensive barrier.
Herbs With Repelling Properties
Many aromatic herbs are excellent for repelling earwigs. Their strong essential oils, which we find pleasant, are overwhelming to many garden pests. Planting these near vulnerable crops or entry points to your home can provide significant protection.
Rosemary
Rosemary is a woody, perennial herb with a potent scent. Its strong aroma masks the smells of more appealing plants, confusing and deterring earwigs. It thrives in full sun and well-drained soil.
- Plant near doorways or garden paths.
- Use cuttings as a mulch around susceptible plants.
- Prefers drier conditions, so avoid overwatering.
Basil
Basil is not just for cooking. Its lush leaves produce a strong fragrance that earwigs dislike. It’s an annual, so you will need to replant it each year, but it grows quickly from seed or starter plants.
- Excellent for interplanting with tomatoes and peppers.
- Pinch off flower heads to encourage leaf growth and scent production.
- Keep soil consistently moist for best growth.
Thyme
Thyme is a low-growing, spreading herb. It forms a dense mat that earwigs are reluctant to crawl across. The tiny leaves release their scent when brushed against, providing constant protection.
- Creeping varieties are especially effective at blocking pathways.
- Requires full sun and excellent drainage.
Strong-Scented Flowers
Flowers with powerful perfumes do more than attract pollinators. Their intense fragrances can repel unwanted insects like earwigs. These flowers add beauty and function to any garden space.
Marigolds
Marigolds are a garden classic for pest control. They contain pyrethrum, a compound used in many natural insecticides. Their distinct smell is known to deter earwigs, nematodes, and even rabbits.
- French marigolds (Tagetes patula) are particularly effective.
- Plant them as a border around your entire vegetable garden.
- Deadhead regularly to promote more blooms and scent.
Lavender
Lavender’s calming scent for humans is a powerful repellent for earwigs. The plant’s dry, woody stems and oil-rich foliage are highly unappealing to many pests. It also attracts beneficial insects like bees.
- Plant near sitting areas or garden entrances.
- Can be dried and the sachets placed in problem areas.
- Needs full sun and very well-drained, even sandy, soil.
Dahlias
Interestingly, some gardeners find that dahlias repel earwigs, while others find they attract them. The difference often lies in variety and garden conditions. Strongly scented, single-flowered dahlias seem to be less attractive than the dense, double varieties.
- Opt for older, fragrant varieties known for their scent.
- Keep the area around dahlias free of debris where earwigs might hide.
- Combine with other repelling plants for a stronger effect.
Other Effective Repellent Plants
Beyond herbs and flowers, other garden plants can contribute to your earwig defense strategy. These include plants with sticky sap, strong odors, or textures that earwigs find difficult to navigate.
Garlic and Onions
Alliums, like garlic and onions, have a sulfur-based compound that pests find offensive. Planting these throughout your garden can confuse and repel earwigs looking for a meal.
- Interplant garlic between rows of lettuce or cabbage.
- Use green onions as a quick-growing border plant.
- The smell intensifies when the leaves are damaged, so don’t be afraid to brush against them.
Mint
Mint is a vigorously spreading plant with a very strong scent. Its aggressive growth can form a barrier, and the menthol aroma is a known insect deterrent. A word of caution: it can invasive.
- Best grown in containers to control its spread.
- Place potted mint near patio doors or basement entrances.
- Crush leaves occasionally to release more scent.
Ferns
While not aromatic, some ferns have a texture or chemical makeup that earwigs avoid. Their dense, shady foliage also creates an environment less ideal for earwigs, who prefer moist, dark hiding places with easier access to soil.
- Boston ferns and sword ferns are good options for shady, damp areas.
- They work best as part of a broader strategy with scented plants.
- Keep fern beds clean of fallen fronds to avoid creating new hiding spots.
How To Design Your Earwig-Repellent Garden
Simply having these plants in your yard isn’t enough. Strategic placement is key to creating an effective, unified defense system. Think of your garden as a fortress, with these plants serving as the outer walls and inner guards.
Creating Protective Borders
The first line of defense is a border around your garden or home. This intercepts earwigs before they reach your prized plants. Use a combination of tall and low-growing repellent plants for a full barrier.
- Identify the main avenues earwigs use to enter your garden, often from wooded areas or dense ground cover.
- Plant a dense row of marigolds, lavender, or rosemary along this edge.
- Add a low-growing border of thyme or creeping mint in front of the taller plants to block ground-level movement.
Companion Planting Strategies
Companion planting means placing repellent plants directly next to vulnerable ones. This method masks the scent of the crop and creates a physical barrier.
- Plant basil next to tomatoes and peppers.
- Surround rose bushes with garlic or chives.
- Interplant rows of carrots or beets with onions.
Using Pots And Containers For Flexible Defense
Potted repellent plants offer flexibility. You can move them to problem areas as needed, such as near a door that earwigs are entering or around a patio seating area.
- Use large pots for perennial herbs like rosemary and lavender.
- Group several pots together to intensify the repellent effect.
- Place containers on decks, patios, or near basement window wells.
Additional Natural Control Methods
While plants form your primary defense, intergrating other natural methods will give you the best results. Earwig control is about making your garden environment less inviting to them overall.
Garden Hygiene And Maintenance
Earwigs thrive in damp, cluttered spaces. Good garden hygiene removes their preferred daytime hiding spots, forcing them to seek shelter elsewhere.
- Remove leaf litter, fallen fruit, and decaying plant matter regularly.
- Store firewood, pots, and garden tools away from planting beds.
- Keep grass and weeds trimmed, especially around garden edges.
Trapping And Physical Removal
Traps can reduce local earwig populations significantly. They are simple, non-toxic, and work well in conjunction with repellent plants.
- Roll up damp newspaper or cardboard and place it in the garden in the evening.
- In the morning, shake the traps into a bucket of soapy water to dispose of the collected earwigs.
- Place small containers (like tuna cans) filled with vegetable oil and a drop of bacon grease near plants.
Encouraging Natural Predators
Birds, toads, and some insects are natural predators of earwigs. Encouraging these allies creates a balanced ecosystem in your yard.
- Install a bird bath and bird feeders to attract insect-eating birds.
- Create a simple toad house with an overturned clay pot.
- Avoid broad-spectrum pesticides that will kill beneficial insects.
Common Mistakes To Avoid
Even with the right plants, a few common errors can undermine your efforts. Being aware of these pitfalls will save you time and frustration.
Overwatering And Excessive Mulch
Earwigs need moisture to survive. Gardens that are consistently wet or have thick, damp mulch provide the perfect habitat for them.
- Water your garden in the morning so the soil surface dries by evening.
- Use a thin layer of dry mulch, like straw or wood chips, and keep it away from plant stems.
- Ensure your garden has proper drainage to prevent waterlogging.
Planting In Isolation
Relying on a single repellent plant in one corner of your garden won’t work. Earwigs will simply go around it. You need a integrated approach for it to be effective.
Neglecting The Perimeter Of Your Home
Earwigs often migrate from garden beds into houses. Creating a dry, plant-free barrier around your home’s foundation is crucial.
- Keep a 6-12 inch gap between mulch and your home’s siding.
- Plant strong repellents like lavender or rosemary immediately outside this zone.
- Seal cracks and crevices in foundations and around utility pipes.
FAQ About Plants That Repel Earwigs
What Smells Do Earwigs Hate The Most?
Earwigs are repelled by strong, pungent aromatic oils. The most effective smells come from herbs like rosemary, basil, thyme, and mint, as well as flowers like marigolds and lavender. The compounds in garlic and onions are also very effective.
Do Earwig-Repellent Plants Also Work Against Other Pests?
Yes, many of these plants offer broad-spectrum benefits. For example, marigolds repel nematodes and aphids, basil can deter flies and mosquitoes, and mint keeps ants and mice away. Planting them creates a healthier garden overall.
How Quickly Will I See Results After Planting?
You may notice a difference as soon as the plants are established and their leaves are producing oils, typically within a few weeks. For the best results, use mature plants or seedlings rather than seeds, and employ traps and garden hygiene from the start for immediate population control.
Can I Use These Plants To Keep Earwigs Out Of My House?
Absolutely. Planting a barrier of repellent plants around your home’s foundation, especially near doors and basement windows, can significantly reduce the number of earwigs that find their way inside. Potted plants on patios or by entryways also help.
Are There Any Plants That Attract Earwigs?
Earwigs are especially attracted to plants that provide ample hiding places or have very dense, moist foliage. They are also drawn to gardens with abundant moss, mulch, and debris. While they may hide in certain plants like dahlias or zinnias, it’s the garden environment, more than a specific plant, that typically attracts them.