Introduction
There is nothing quite like the feeling of walking into your garden on a crisp summer morning to harvest a fresh bouquet of dahlias. These stunning blooms, with their intricate layers and vibrant colors, are the crowning glory of many home landscapes. Bringing that beauty indoors is one of the greatest rewards for any gardener. At Longfield Gardens, we believe that the transition from garden to vase should be as smooth and enjoyable as the growing process itself.
Sometimes, however, you might find a tiny, uninvited guest hitching a ride on your flowers. Earwigs are fond of the same dark, cool, and moist spaces that dahlia petals provide. While they are a natural part of a healthy garden ecosystem, you certainly do not want them scuttling across your dining room table.
This guide will teach you exactly how to get earwigs out of cut dahlias using simple, gentle methods. We will also cover how to minimize their presence in the garden so your future harvests are even cleaner. By following a few straightforward steps, you can enjoy pest-free arrangements all season long.
Why Earwigs Frequent Dahlia Blooms
To effectively remove earwigs, it helps to understand why they are there in the first place. Earwigs are nocturnal insects that seek out tight, dark, and slightly damp spaces to hide during the daylight hours. A dahlia, especially the multi-petaled decorative or dinnerplate dahlias varieties, is essentially a five-star hotel for an earwig.
The many layers of petals create deep crevices that offer protection from predators and the drying heat of the sun. Unlike some other pests that only eat the foliage, earwigs are often attracted to the tender petals and the moisture held within the flower head. Because they are most active at night, they are often tucked deep inside the bloom when you head out for your morning harvest.
Understanding this behavior makes it easier to flush them out. Since they are looking for a hiding spot, your goal is to make the flower an uncomfortable place for them to stay once it has been cut.
The Best Way to Remove Earwigs Before Bringing Flowers Inside
The most effective way to keep earwigs out of your home is to ensure they never make it past the back door. Taking a few extra minutes during the harvest process can save you the trouble of chasing insects around your kitchen later.
The Gentle Shake Method
As soon as you cut a dahlia stem, hold it upside down by the base of the stem. Give the flower a few gentle but firm shakes. This physical movement often startles the earwigs and causes them to lose their grip on the petals.
Do this over the garden bed or a dedicated "shaking station" away from your doorway. For flowers with very dense petals, like pompon or ball dahlias, you may need to shake a bit more vigorously, but always be careful not to snap the neck of the flower.
The Water Dunk Technique
If shaking does not do the trick, the "water dunk" is a highly effective secondary step. Fill a clean five-gallon bucket with cool water. Submerge the flower heads completely for about 30 to 60 seconds.
Earwigs cannot breathe underwater and will quickly scramble out of the petals to reach the surface. Once they float to the top or drop to the bottom of the bucket, you can easily remove them. This method is particularly useful for dinnerplate dahlias, where earwigs can hide so deep that a simple shake won't reach them.
After the dunk, gently swirl the flower in the air to remove excess water. Dahlias are quite resilient, and a quick dip in cool water will not harm the petals. In fact, it can often help hydrate the bloom.
The Quarantine Bucket
For those who harvest large quantities of flowers at once, a quarantine bucket is a great tool. After cutting and shaking your flowers, place them in a bucket of water and leave the bucket in a shaded, outdoor area for an hour.
As the environment changes and the sun moves, many insects will naturally decide to leave the "cut" flowers in search of a more permanent hiding spot in the garden. When you finally bring the bucket inside, the number of hitchhikers will be significantly lower.
Key Takeaway: The Harvest Routine
- Cut stems in the early morning when the flowers are most hydrated.
- Give each bloom a firm, upside-down shake immediately after cutting.
- Dunk dense or large flowers in a bucket of cool water for 30 seconds.
- Allow flowers to sit in a shaded outdoor spot for an hour before bringing them indoors.
Dealing With Earwigs Once They Are Indoors
Despite your best efforts, an occasional earwig might still find its way into your home. If you spot one after you have already arranged your flowers, there is no need to panic. They do not cause damage to your home or furniture, and they are easy to manage.
The Vase Inspection
After placing your dahlias in a vase, wait about ten minutes and then check the table surface around the vase. As the flowers settle and the room light changes, any remaining earwigs may crawl out. You can simply catch them with a piece of tissue and return them to the outdoors.
Temperature and Light
Earwigs are sensitive to changes in their environment. If you place your floral arrangement in a very bright room, the insects will likely stay hidden deep in the petals where it is dark. If you move the arrangement to a cooler, darker area, like a basement or a garage overnight, they may be more inclined to exit the bloom.
Some gardeners find that placing a floral arrangement in a cool refrigerator (away from fruit, which releases ripening gases) for a few hours "shocks" the insects into moving. While the cold makes them move slower, the change in environment often encourages them to drop out of the flower head.
Reducing Earwig Populations in the Garden
The fewer earwigs you have in your garden, the fewer will end up in your cut flowers. You do not need to aim for total eradication; a balanced garden actually benefits from having a few earwigs around. They are known to eat aphids, mites, and other small pests that can harm your plants. However, when the population gets too high, they start snacking on your prized petals.
Remove Preferred Hiding Spots
Earwigs love clutter. They hide under piles of damp leaves, old mulch, woodpiles, and overgrown weeds. One of the simplest ways to reduce their numbers near your dahlias is to keep the area around the base of the plants clean.
Try to keep a small "clear zone" of bare soil or very thin mulch directly around the dahlia stalks. This makes the trek from the ground to the flower more exposed, which earwigs generally avoid. Regularly clearing away spent leaves and fallen petals will also remove the damp debris they find so attractive.
Trapping and Relocating
Trapping is a highly effective, chemical-free way to manage earwigs. Since they are naturally looking for dark places to hide at night, you can provide "artificial" hiding spots and then dispose of them in the morning.
- The Newspaper Trap: Take a few sheets of newspaper, roll them up loosely, and dampen them slightly. Secure the roll with a rubber band and place it at the base of your dahlia plants in the evening. In the morning, the roll will be filled with earwigs. Simply pick up the roll and shake the insects into a bucket of soapy water.
- The Oil and Soy Sauce Trap: This is a favorite among dahlia enthusiasts. Find a small plastic container with a lid, such as a margarine tub. Cut a few small holes near the top edge of the container. Fill it with equal parts vegetable oil and soy sauce. The soy sauce attracts the earwigs, and the oil prevents them from escaping. Bury the container so the holes are at soil level. Check and refill the trap every few days.
Mechanical Barriers
If you have a specific plant that seems to be an earwig magnet, you can use mechanical barriers to keep them from climbing the stems.
- The Vaseline Trick: Smearing a small ring of petroleum jelly around the base of the dahlia stem can act as a barrier. The earwigs find it difficult to cross the sticky surface. This is a great solution for taller varieties where the insects have a long climb to reach the blooms.
- Organza Bags: Many professional dahlia growers use small mesh organza bags to protect individual blooms. You slip the bag over the bud just before it opens and tie it off at the stem. This allows light and air to reach the flower while physically blocking earwigs and other pests from entering the petals. This is particularly helpful if you are growing dahlias for a competitive show or a special event.
Simple Garden Maintenance for Healthy Dahlias
A healthy, vigorous dahlia is often less attractive to pests than one that is struggling. By getting the basics right, you give your plants the strength they need to withstand a few nibbles here and there.
Right Plant, Right Place
Dahlias thrive in full sun and well-draining soil. At Longfield Gardens, we recommend ensuring your plants get at least six to eight hours of direct sunlight daily. For more guidance, see this guide to growing dahlias in full sun. Good air circulation is also key. When plants are crowded together, the environment stays damp and shaded longer, which is exactly what earwigs prefer. Space your dahlias according to their variety's specific needs to ensure the wind can move through the foliage.
Water Correctly, Not Constantly
Overwatering creates the damp conditions that earwigs love. It is better to water your dahlias deeply a few times a week rather than giving them a light sprinkle every day. Deep watering encourages the roots to grow down into the soil, while a light sprinkle keeps the surface of the soil—and the earwigs' habitat—constantly moist. Use a soaker hose or drip irrigation if possible to keep the water at the soil level and away from the leaves and flowers. Longfield Gardens offers additional advice on the best growing conditions for dahlias.
Use Quality Products
If you find that traps and cleaning are not enough, there are garden-safe products that can help. Diatomaceous earth is a natural powder made from fossilized organisms. When sprinkled on the soil around the base of your plants, it acts as a physical deterrent. It is very sharp on a microscopic level, making it uncomfortable for crawling insects to pass over.
Alternatively, iron phosphate pellets (such as Sluggo Plus) are effective against both slugs and earwigs. These are generally considered safe for use around pets and wildlife when used as directed on the label.
What to Do Next: Garden Protection
- Clear away dead leaves and thick mulch from the base of your dahlias.
- Set out rolled newspaper traps in the evening to catch active insects.
- Apply a ring of petroleum jelly to the lower stems of your favorite plants.
- Consider using organza bags to protect the most important blooms for cutting.
Choosing Varieties Less Prone to Earwigs
If earwigs are a consistent problem in your area, you might consider the types of dahlias you choose to grow. While we all love the massive, multi-petaled blooms of a 'Cafe au Lait' or 'Labyrinth', these are the most likely to harbor pests because they offer the most hiding spots.
Single-flowered, anemone, and collerette dahlias have open centers and fewer petals. Because these flowers are more "open," they do not provide the dark, enclosed spaces that earwigs crave. They are also much easier to inspect and shake out during harvest. Browse the single dahlia collection for open-faced varieties.
Mixing these varieties into your garden provides a diverse look and can make your indoor bouquets much easier to manage. Varieties like the 'Bishop of Llandaff' or 'HS Flame' are beautiful options that tend to be much less "buggy" than their denser cousins.
Encouraging Natural Balance in Your Yard
Gardening is always more enjoyable when nature does some of the work for you. Encouraging natural predators is one of the most effective long-term strategies for managing earwigs.
Birds, especially wrens and chickadees, find earwigs to be a delicious snack. By providing a birdbath, birdhouses, and a variety of native plants, you can attract a feathered security team to your garden. Toads and frogs also eat large quantities of earwigs, so creating a small, damp (but managed) area or a "toad house" in a shady corner can be very helpful.
Remember that gardening is a journey, and every season brings new lessons. A few earwigs in your dahlias are not a sign of failure; they are simply a sign of a living, breathing garden. By using the simple harvest tips and garden management techniques we’ve discussed, you can keep the balance in your favor.
Conclusion
Bringing the beauty of the garden indoors should be a source of relaxation and pride. While earwigs are a common part of the dahlia-growing experience, they are easily managed with a few practical steps. By shaking your blooms, using the water dunk method, and maintaining a tidy garden, you can ensure that your indoor spaces remain a sanctuary for flowers, not insects.
At Longfield Gardens, we want to help you succeed at every stage of the gardening process. From the moment you plant your tubers to the day you place a fresh bouquet on your kitchen counter, we are here to provide the support and quality plants you need.
Final Tips for Success
- Be Proactive: Start your trapping and cleaning routines early in the summer.
- Be Gentle: Use cool water and gentle shakes to protect delicate petals.
- Be Patient: A balanced garden takes time to establish, so enjoy the process.
- Be Observant: Spend time in your garden to see which methods work best for your specific conditions.
Enjoy your dahlias, and remember that with just a little bit of preparation, you can keep the "wild" in the garden and the "beauty" in the vase.
FAQ
Will earwigs bite me when I am cutting dahlias?
Earwigs are not aggressive and do not seek out humans to bite or sting. While they have pincers on their abdomen, these are primarily used for defense against other insects and for mating. If you pick one up, you might feel a tiny pinch, but it is not dangerous or poisonous. Simply wearing gardening gloves during harvest can prevent any physical contact.
Does spraying dahlias with water help get rid of earwigs?
A strong blast of water from a garden hose can physically knock earwigs off the plant, but it is only a temporary fix. Since they are nocturnal, they will likely return once the plant is dry. For cut flowers, submerging the head in a bucket (the "water dunk") is much more effective than spraying, as it forces them out of the deep crevices between petals.
Are there any "earwig-proof" dahlias?
No dahlia is 100% earwig-proof, as these insects are opportunistic. However, single-flowered, collerette, and orchid-style dahlias are much less attractive to them because they lack the deep, dark layers of petals found in decorative or dinnerplate varieties. If you want a lower-maintenance harvest, choosing these open-faced varieties is a smart strategy.
Is it safe to use soapy water on my cut dahlias?
While a drop of mild dish soap in a bucket of water can help kill earwigs quickly, you should be careful with cut flowers. Some soaps can damage the delicate wax coating on dahlia petals, causing them to wilt or discolor faster. For cut flowers intended for a vase, it is best to use plain, cool water for dunking and save the soapy water for your newspaper or oil traps.
