How to Get Earwigs Out of Cut Dahlias

Table of Contents

1. Introduction
2. Why Earwigs Choose Your Dahlias
3. Managing Garden Populations Before Harvest
4. The Best Time to Cut Dahlias
5. The Outdoor Transition Zone
6. The Water Bath Technique
7. Creating a Physical Barrier
8. Dealing with Other Common Hitchhikers
9. Summary of Best Practices for Pest-Free Bouquets
10. The Joy of the Harvest
11. FAQ

Introduction

There is nothing quite like the satisfaction of walking into your garden on a summer morning to harvest a fresh armful of dahlias. These spectacular blooms, with their intricate layers and vibrant colors, are the crowning jewel of the late-summer landscape. Bringing them indoors allows you to enjoy their beauty up close, turning any room into a celebration of the season.

At Longfield Gardens, we want every part of your gardening experience to be rewarding, from the moment you plant your tubers to the day you place a finished bouquet on your table. While dahlias are generally easy to grow, they do have a tiny, uninvited guest that occasionally hitches a ride into the house: the earwig. These nocturnal insects love to hide in the dense petals of decorative and dinnerplate dahlias, which can lead to a bit of a surprise when you are arranging your flowers.

Getting earwigs out of your cut dahlias is a simple process that requires just a bit of patience and a few clever techniques. If you're newer to working with dahlia tubers, this guide will help you understand why earwigs are attracted to your flowers and provide practical, chemical-free ways to ensure your indoor arrangements remain pest-free. By following a few easy harvest steps, you can enjoy clean, beautiful blooms all season long.

Why Earwigs Choose Your Dahlias

To solve the problem of earwigs in your bouquets, it helps to understand why they are there in the first place. Earwigs are moisture-seeking, nocturnal insects that look for dark, tight spaces to hide during the daylight hours. A dahlia flower, particularly the double-flowered "decorative" types like Café au Lait, provides the perfect habitat.

Labyrinth is another decorative dahlia with the same kind of dense, layered petals. The many layers of petals on these varieties create hundreds of tiny "caves" where an earwig can stay cool and protected from the sun. While they occasionally nibble on the petals—leaving behind tell-tale jagged edges—they are often just using the flower as a high-rise hotel. Because they are active at night and hide during the day, you may not even realize they are inside the bloom until the flower is cut and brought into the warmer, brighter environment of your home.

It is also worth noting that earwigs are attracted to the same things dahlias love: consistent moisture and organic mulch. If your garden is a healthy, thriving environment, it is natural to have some earwigs around. They actually serve a beneficial purpose by eating aphids and other soft-bodied pests. The goal isn't necessarily to eradicate them from the garden entirely, but rather to make sure they stay outdoors where they belong.

Managing Garden Populations Before Harvest

The easiest way to have fewer earwigs in your cut flowers is to reduce their numbers in the garden before you ever pick up your shears. You can do this effectively without harsh chemicals by using simple traps that take advantage of the earwig’s natural behaviors.

The Soy Sauce and Oil Trap

This is one of the most effective ways to lower the earwig population around your dahlia beds. The scent of the soy sauce acts as a powerful lure, while the oil prevents the insects from escaping.

• Find a small plastic container with a lid, like a yogurt or margarine tub.
• Cut or poke small holes (about a quarter-inch wide) near the top rim of the container.
• Fill the bottom with equal parts vegetable oil and soy sauce.
• Place the lid on and bury the container in the soil near your dahlias, leaving the holes just above the soil line.
• Check the trap every few days, empty it, and refill as needed.

The Newspaper Roll Trick

Since earwigs look for tight, dark places to hide as the sun comes up, you can provide them with a "fake" home that makes them easy to relocate.

• Roll up a sheet of damp newspaper or a piece of corrugated cardboard.
• Secure it with a rubber band and place it at the base of your dahlia plants in the evening.
• In the morning, the earwigs will have crawled inside the damp rolls for shelter.
• Pick up the rolls and shake them out into a bucket of soapy water or move them to a distant part of the yard.

Key Takeaway: Reducing the number of earwigs near the base of your plants significantly lowers the chances of them climbing up into the blooms. Consistency with trapping for a week or two can make a noticeable difference.

The Best Time to Cut Dahlias

Timing is a major factor in successful gardening, and it plays a large role in how many "hitchhikers" you find in your harvest. If you want to check how Longfield Gardens times shipments by zone, see our Shipping Information page.

For the cleanest flowers and the longest vase life, the best time to cut dahlias is in the early morning.

During the cool morning hours, the flowers are fully hydrated and the stems are firm. This is also the time when earwigs are starting to settle into their hiding spots. By cutting early, you catch them before they have fully retreated into the deepest parts of the petals. If you wait until the heat of the day, the insects are tucked in tight, and the flowers are more likely to wilt from the stress of the sun.

When you go out to harvest, bring a clean bucket of room-temperature water with you. Cutting the stems and immediately placing them into water helps the flower stay fresh. Before you drop each stem into the bucket, give the flower head a very gentle shake over the ground. This simple mechanical action is often enough to dislodge any earwigs that haven't burrowed deep into the center.

The Outdoor Transition Zone

One of the most effective ways to keep earwigs out of your kitchen is to implement an "outdoor transition" phase. Instead of bringing your bucket of cut dahlias directly inside, let them sit in a shaded spot outdoors for a few hours.

A porch, a garden bench, or even the shade of a large tree works well for this. As the temperature rises and the light changes, the earwigs may decide their current "hotel" is no longer the quiet, dark spot they were looking for. By leaving the bucket outside for two to three hours, you give the insects a chance to crawl out and find a new hiding spot in the garden rather than on your dining table.

While the flowers are sitting in the shade, you can perform a second inspection. Look for any visible damage to the petals or any suspicious movement within the bloom. This extra time allows the flowers to "rest" after being cut, which is also beneficial for their overall vase life.

The Water Bath Technique

If you are dealing with particularly dense varieties like dinnerplate dahlias or very full pompons, a simple shake may not be enough. In these cases, a gentle water bath is your best tool for getting earwigs out of the petals.

How to Perform a Petal Rinse

1. Fill a large, deep bucket or a clean outdoor sink with cool (not ice-cold) water.
2. Add a tiny drop of mild dish soap to the water. The soap breaks the surface tension, making it harder for insects to stay tucked away.
3. Hold the dahlia by the stem and gently submerge the flower head completely in the water.
4. Move the flower in a very slow up-and-down or side-to-side motion for about 5 to 10 seconds.
5. Lift the flower out and give it a gentle, firm shake to remove excess water.

This method works because the earwigs will naturally try to escape the water and will often float to the surface or fall to the bottom of the bucket. Be careful not to use high-pressure hoses, as the force of the water can bruise or tear the delicate dahlia petals. A gentle soak is all that is required.

Creating a Physical Barrier

If you find that earwigs are a recurring issue every time you want to make a bouquet, you can take steps to stop them from climbing the plants in the first place. Earwigs are not great flyers; they primarily move by crawling up the stems of your dahlias.

Applying a small amount of petroleum jelly (Vaseline) around the base of the main dahlia stems can act as a slippery barrier. The earwigs find it difficult to cross the sticky surface, effectively trapping them at the bottom of the plant. This is a great solution for those who want to grow larger "show" varieties that are particularly susceptible to earwig damage.

Another option is to use a physical barrier like "insect glue" or double-sided garden tape. These products work similarly to petroleum jelly but are designed to withstand watering and rain a bit longer. Apply the barrier a few inches above the soil line, ensuring it circles the entire stem. This keeps your blooms clean and prevents the jagged petal damage that earwigs sometimes cause during their nightly feedings.

Dealing with Other Common Hitchhikers

While earwigs are the primary concern for many dahlia lovers, they aren't the only tiny creatures that enjoy these flowers. You might also find ants, spiders, or small beetles.

Ants are often attracted to the sticky sap (honeydew) produced by aphids. If you see ants on your dahlias, it is a sign you should check for aphids on the stems or the undersides of the leaves. Spiders, on the other hand, are beneficial predators that help control other pests. Most spiders found on dahlias are harmless and will quickly run away if the flower is disturbed or shaken.

The same "dunk and shake" method used for earwigs will effectively remove most of these other insects as well. If you are particularly concerned about ants—which are common on peonies as well as dahlias—cutting the flowers when they are in the "marshmallow" stage (buds that are soft but not yet fully open) can prevent them from ever entering the flower in the first place.

Summary of Best Practices for Pest-Free Bouquets

To ensure your indoor arrangements are clean and beautiful, we recommend a multi-step approach. You don't have to do every one of these every time, but a combination of two or three will solve most earwig problems.

• Garden Hygiene: Keep the area around your dahlias clear of excessive leaf litter and debris where earwigs like to hide during the day.
• Active Trapping: Use soy sauce or newspaper traps during the peak of the season to keep populations low.
• Morning Harvest: Cut your flowers early in the day when the insects are less active and the flowers are most hydrated.
• The Shake and Dunk: Give every flower a gentle shake in the garden and use a water bath for denser blooms.
• The Shady Rest: Let your cut flowers sit in a bucket of water in a shaded outdoor spot for a few hours before bringing them inside.

What to do next:

• Set out one soy sauce trap near your favorite dahlia plant tonight.
• Prepare a "harvest kit" with a clean bucket and a small bottle of mild dish soap.
• Check your plants in the morning and harvest any blooms that are about three-quarters of the way open.

The Joy of the Harvest

Gardening is about more than just the work; it is about the rewards we get to enjoy. A vase full of dahlias is a testament to your care and the natural beauty of the summer season. While finding an earwig in a bouquet can be a bit startling at first, it is simply a sign of a healthy, living garden ecosystem.

With these simple techniques, you can move past the worry of pests and focus on the creative joy of flower arranging. Our goal at Longfield Gardens is to help you feel confident in every step of the process. By taking a few extra minutes during the harvest to shake, dunk, and rest your flowers, you ensure that the only thing you are bringing into your home is the stunning beauty of your hard work and our 100% Quality Guarantee.

"A few simple harvest habits can turn a bug-prone bouquet into a professional-quality arrangement that stays fresh and clean for days."

Remember that every garden is different. Depending on your local weather and soil conditions, you may find that some years have more earwigs than others. Stay observant, use your traps when needed, and enjoy the incredible colors and forms that only dahlias can provide.

FAQ

Will earwigs in my cut flowers infest my house?

No, earwigs are not household pests like cockroaches or ants. If an earwig hitches a ride inside on a flower, it is strictly by accident. They cannot survive for long in the dry, indoor environment of a typical home and will not create a nest or "infestation" in your kitchen or living room. Simply relocate them back outside if you find one.

Does spraying dahlias with water damage the petals?

While a gentle soak or dunk in a bucket of water is generally safe, high-pressure spray from a garden hose can bruise or tear delicate dahlia petals. To avoid damage, always use the "dunking" method where you submerge the flower head in still water, rather than hitting it with a stream of water. Ensure you shake off excess water gently so it doesn't sit in the center of the bloom and cause rot.

Are there certain dahlia varieties that earwigs don't like?

Earwigs are much less likely to hide in single dahlias. These varieties have a single row of petals and an open center, leaving nowhere for the insects to hide.

If you want to minimize the chance of earwigs without using traps or water baths, choose varieties like HS Date, which have more open structures.

Pooh is another good choice, with a bright collarette form and an open center.

Can I use insecticidal soap on my dahlias?

You can use insecticidal soaps to manage pests in the garden, but we recommend avoiding them on flowers you intend to cut and bring inside. Some soaps can leave a residue or a slight scent on the petals, and they may even cause minor discoloration on certain light-colored varieties. Stick to clear water or a tiny drop of mild dish soap for cleaning your cut flowers.