Ants enjoy peonies for the same reason that we do—they are delightful. You’ll observe sweet nectar droplets surrounding the bloom’s green exterior as the flower buds develop (called the sepal). Ants adore sugar, as we all are aware. It makes sense that they would be drawn to this sticky honey.
This frequent occurrence gave rise to the misconception that ants are necessary for peonies to blossom.
According to the hypothesis, in order for the buds to open, the sticky substance must be removed by the ants. However, this myth is wholly wrong. Peonies will bloom with or without a few ants’ assistance (it makes for a wholesome story though).
Published: May 29, 2018
The “king of all flowers,” peonies, are currently giving Missouri a breathtaking display of blossom color. However, ants also appear as the peony plants begin to bloom. Ants on buds and blossoms can be a pain, but they don’t hurt anything (Figure 1). Ants leave peony flowers after bloom is through and go on to seek out another food source.
It is untrue that ants are necessary for peonies to bloom. Peonies and ants have a mutualistic relationship in which both of their activities are beneficial to the other species of organisms. Ants eat the nectar from peony blooms, and in return, the ants defend the flowers from other insects that consume flowers.
It is possible to find extrafloral nectaries outside of peony flower buds. These plant organs exude nectar, which serves as an ant food supply since it contains sugars (sucrose, glucose, and fructose), amino acids, lipids, and other organic substances. A scout ant leaves a pheromone or odor trail on her journey back to her colony after finding nectar on a peony. The scout informs other ants at the nest of the food supply. The recruited ants then return to the nectar-filled peony blossoms by following the olfactory trail.
The ants guard their food supply from other insects that come to dine on the flower buds while they are consuming the nectar. The odor trail is reinforced when each ant consumes peony nectar, continuing until all of the food has been consumed. This kind of insect behavior is an effective way for them to make use of a transient food source.
An insecticide need not be used because the presence of ants on the floral tissues of peonies is only transient. Holding the peonies upside down by the stem immediately below the flower, shake the ants off outside or gently rinse them off before arranging them when cutting peonies at full bloom for indoor use. Cut plant stems while flower buds are in the “marshmallow stage” to assure ant eradication, and wash any ants off with water before bringing them inside (Figure 2). Flower buds are currently closed but displaying some color. Squeezing flower buds between the forefinger and thumb will also feel velvety. When marshmallow-stage buds are taken indoors, full bloom usually happens within 8 to 48 hours of putting the stems in water. Cut stems containing flower buds can also be refrigerated for subsequent bloom production.
Thrips, a common insect that feeds on peony blooms, are not like ants. These tiny (1 to 2 mm long), thin insects use their mouthparts to penetrate flower petals and draw liquids from the plant tissues, resulting in flowers that are discolored or have blemishes. Heavy infestations that obliterate peony flowers are quite uncommon. See the most recent IPM article, “Plant Peonies in September,” for more details on cultivating peonies.
On peony flowers, how can I get rid of ants?
Originally published: Christina Dennis; modified
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My favorite flower is a peony. The green foliage is quite lovely, and they are so fluffy and lovely! This peony season as I’ve been gathering, weeding, and arranging them, I thought it would be a good idea to write about and explain what I do to make sure my flowers are as lovely as possible when I bring them inside. I’ve learnt a few things after growing them for five years that you might find useful. If you’re interested in learning more about how to cultivate and choose peony as well as how to deal with ants, keep reading if you’re interested.
How to Grow Peonies
From zones 3 to 8, peonies can grow. As a novice home gardener in Alberta, Canada, I am able to grow them there. My knowledge is limited to herbaceous peonies, which are shrub-type peonies that prefer full sun. Mine are in full light on the south side of my house, and they thrive there. Peony plants are widely available at the majority of gardening stores, as well as at Walmart and Home Depot. In order to ensure that you plant them at the proper depth and distance apart, plant them in late spring and pay close attention to the planting instructions that will be included with your purchase.
Just a heads up: Peony plants do take a bit to grow and begin to produce enormous, beautiful blooms. Mine lasted for around four years. I think it’s worthwhile to wait until they are fully grown because once they begin to bloom, you can enjoy these gorgeous perennial plants for many years to come! Alexander Fleming (full and vivid pink) and Sarah Bernhardt are the varieties I possess and adore (full and blush pink). Early in the spring, I like to surround my larger, more mature plants with a ring of stakes. In this way, when they become heavy with lovely blossoms, they won’t droop or topple over.
How to Store Peonies to Bloom Later
In zone 3, peonies only bloom for a few weeks in late June, but there are several simple ways to extend their blooming period! One method is to select them at the ideal moment and place them in the refrigerator. Wait until the peony bud is fully colored and marshmallow-soft to the touch. The flower bud will no longer be green during this stage, known as the “marshmallow stage,” and all that will be seen are the colored petals that are almost ready to open. Once your buds resemble those seen above, trim the stems with garden shears or a sharp knife, removing all of the leaves before gently wrapping the trimmed stems in plastic wrap. After a few weeks of horizontal storage in your refrigerator, remove them, put them in a vase with water, and watch as the petals open up.
How to Deal with Ants on Peonies
Ants adore peonies and may be a real annoyance. When you go to check on your lovely blossoms and discover an ant swarm, it is upsetting. It could be a good idea to keep in mind how crucial these tiny insects are to the maturation of peonies. They consume the nectar from the peony buds, which causes the blooms to open so brilliantly, as a food source. Even so, you still don’t want them in your home, and there are techniques to reduce their numbers so you can peacefully enjoy your indoor flowers.
Picking peonies when they are still in the marshmallow bud stage may help keep ants away from the ones you wish to cut and utilize inside. In this manner, the ants are prevented from colonizing the petals. Then you may place them in a vase with water to allow them to bloom. But be careful not to pick your buds too soon! The nectar (from the extrafloral nectaries, if you want to be nerdy about the whole thing) is what the ants need to consume in order for the peony to open. If you bring them inside before the ants have had a chance to do their thing, they won’t open correctly.
Another approach entails getting rid of ants after the petals have opened and they have established themselves inside the peony head. When your peonies have reached the stage of full opening, use this. Just hang them upside down and vigorously shake them. Before bringing the petals inside, remove any remaining insects. To be sure, you can also soak the flowers outside in a bucket of water while they are upside down to get rid of bugs. My preferred method is to soak mine for about two hours, shake them well, and then bring them indoors. I can assure you that this method effectively eliminates the ants while causing them no harm at all.
Will peonies bloom if ants are absent?
Do ants actually aid in the blooming of peonies? Ants “tickle the buds to assist the flowers open,” according to myth about gardens. There is a beneficial relationship between peonies and ants, but it’s not what you may imagine. The tale of peony and ants is presented here, along with advice on how to bring peonies indoors without attracting ants.
We celebrate the breathtakingly gorgeous peony blossoms in the late spring. But those of us who have peonies in our gardens might also note the ants’ appearance, particularly in or near the base of the flower or on unopened buds.
Are Ants Harmful to Peonies?
Let’s answer this initial query first. No. Without a doubt. Avoid sweeping those ants under the rug or, even worse, using insecticide!
Ants are not only NOT dangerous, but they are also a prime illustration of biological mutualism. The ants guard the peony from aphids, thrips, and other harmful insect pests while the peonies supply nectar (food) for the ants.
Do Peonies Need Ants to Bloom?
The persistent misconception is that ants are necessary for peonies’ buds to open. You may have heard that for peonies to blossom, ants must “tickle the buds” or “lick the sugar.”
As with most mythology, this claim may have once had a glimmer of reality, but we haven’t yet seen proof of it. (We also appreciate that this legend keeps ants and peonies alive while letting nature run its course.)
Why Ants Are Attracted to Peonies
Simply put, the sugary drops (nectar) that are present at the base of the green sepals that encircle a peony bud are what attract ants. Due to the presence of amino acids, lipids, and other organic substances in addition to sugars, this is an excellent food source for ants.
The peonies ARE NOT being eaten by the ants. A scout ant leaves a pheromone or odor trail on her journey back to her colony after finding nectar on a peony. The scout informs other ants at the nest of the food supply. The recruited ants then return to the nectar-filled peony blossoms by following the olfactory trail.
In return, the ants offer some defense for the plant! The ants attack other bud-eating pests while they are consuming the nectar by stinging, biting, or acid-spraying them before tossing them off the plant in order to preserve their food source.
The ants are also transient. The ants will leave the peony flower once it has bloomed and move on to look for other food sources.
Again, even if there are ants present (for example, if you live on a rooftop), the peony blossoms would still open.
How to Get Rid of Ants on Peonies Before Bringing Indoors
While we appreciate our garden’s pink, crimson, and traditional white peonies, we also like bringing their beauty and smell inside. But how can we prevent bringing ants inside as well?
There are several approaches:
- When the dew is still thick and most of the ants are not yet present, cut the peony early in the morning. Turn the peonies upside down while holding them by the stem just below the flower (to prevent their heads from breaking off). Give the stems directly above the flowers a few solid taps. This aids in removing insects and spiders. Apply the correct amount of force for the stem.
- Watch the ants emerge after dipping each peony bloom in a large dish of chilly water outside. They won’t be able to crawl out if the dish is overfilled. To avoid picking up more ants, gently shake/tap the water off the flower and place the stem in a prepared vase. The water in the dish can then be returned to nature, along with the ants.
Cutting the peony flowers before the buds fully open is yet another technique used by expert growers. To get the peony’s buds to open indoors, you must clip it while they are at the “marshmallow stage” (see photo above).
Peonies should be deadheaded, right?
One gardening activity that has several advantages is deadheading peonies. Look at these!
- Increasing Plant Quality These hardy perennials may concentrate their energy on growing the plant itself as they don’t have seed heads or discarded blooms to worry about. This might comprise:
- expanding the tuber
- storing up energy for the coming year
- Putting down stronger roots
- Cleaning the Garden
- Once the peony plant has finished blooming, the unattractive part can be removed by simply snipping away the spent flower heads. Keep the greenery to help you conserve energy for the following season.
- Simple, quick, and satisfying
- Peony deadheading is a quick, simple, and satisfying yard task. When you next just have five or ten minutes to spend in the garden, this project is ideal.
- Future Blooms will be larger
- Do it even though it’s unlikely you’ll see more peony flowers this year. Peonies will produce more and better flowers in the future if deadheading is done.
- Increasing the Plants’ Compactness
- Our peonies are allowed to grow until they die back in the fall, so removing the deadheads helps the plants become a little more compact. This gives us some room in the garden to grow other flowers in front of or behind them, such as hyacinths, sunflowers, or zinnias.
Do you know of any more advantages to deadheading peonies? These are my favorites and make spending a bit more time with these plants worthwhile.
How are peony cared for outside?
These enormous plants, which bloom lavishly in May and June, are a must-have for every garden. Herbaceous peonies are true perennials that can live for about fifty years and are more stunning with age. Peonies are simple to grow and will provide you with armfuls of cut flowers as well as a magnificent landscape display. They are excellent specimen plants, get along well with other perennials in the yard, and work well as path or driveway borders. There are kinds that bloom early, mid, and late and some of them have scented blooms to lengthen the flowering season. Zones 3 to 8 are suitable for growing peonies; in the South, Alabama is where they will bloom, but Zone 8’s cooler regions seem to be their limit. For the best results, southern gardeners should select early-flowering singles.
Light/Watering: Herbaceous peonies should be grown in full sun, with the exception of the hottest regions of the West and the South, where afternoon shadow is preferred and will prolong the life of the blossoms on the plant. It is advised to give plants an inch of water per week during the growing season.
pH and Fertilizer: An organically rich, well-drained soil is ideal. Add a few handfuls of calcitic lime while planting if your soil is quite acidic. In the North, place the roots with the eyes (the pink or white buds at the top of the roots) pointing up, while in the South, place the roots with the eyes pointing down. (Note: Plants may not blossom if the eyes are positioned deeper than is suggested. Mulch should not be applied over the crowns due to this.) It’s normal for plants to take a few years to establish themselves and blossom profusely, so don’t be startled if there are few or no flowers the first spring after planting. No extra fertilizing is required; peonies react nicely to an annual sidedressing of one inch of aged manure or compost. To stop their blossoms from falling into the dirt after a thunderstorm, many Peonies, especially the double-flowered kinds, must be staked. As soon as fresh growth starts to appear in the early spring, install the supports.
Pests and diseases: Herbaceous peonies are rarely bothered by insect pests, but a fungus called botrytis can be a concern, particularly during extremely rainy seasons. Peony stems either wilt or fall over as a result of developing cankers, becoming black at the base, or both. The leaves may have patches of black or brown color, and the buds may turn brown and not open. These issues can be avoided or resolved in the garden with proper culture and cleanliness. Don’t crowd the plants because they require proper drainage and air circulation. At the first sign of disease, remove any infected foliage. Deadhead regularly, removing all flower parts and petals from the garden. After a deadly frost in the fall, remove all foliage that is just below the soil and remove it together with any other debris from the area; do not compost. Add a thin layer of sand around the plants and crowns if botrytis was present in the spring before, and then spray newly developing shoots with Bordeaux mix or lime sulfur as directed on the label. Fungal spores overwinter at the base of the plants, where they are then sprayed onto the young shoots by spring rains. Sand-covering the soil and clearing away any waste and outdated vegetation can help avoid reinfection.
There may also be phytophthora, a different blight that is difficult to distinguish from other blights. If you think your plant may have phytophthora, bring a sample to your local USDA Cooperative Extension Service agent or a specialist. Because this disease usually kills the plant, affected plants should be dug up, killed, and the soil restored before new plants are planted.
In the summer, powdery mildew can affect peonies. Despite covering the leaves in varied degrees, the white, powdery mildew fungus appears to have little impact on the plant’s vitality. By planting in full sun and ensuring enough airflow around the plants, this can be prevented or at least lessened.
Peonies are attractive with many other perennials and bloom with roses and clematis; just make sure to provide space around the plants for air circulation. Peonies with white flowers are captivating against an evergreen backdrop. The scarlet stems of developing Herbaceous Peonies are beautifully contrasted with spring-flowering bulbs like Crocus vernus or Scilla siberica.
Reflowering: Deadheading is helpful since many kinds produce a number of side buds that will blossom after the terminal bloom flowers. Cut the stem beneath the previous bloom when each flower has completed blooming, but leave the foliage uncut. Remove the side buds as they form and just leave the terminal bud if you want flowers that are exhibition-size.
Generally speaking, Herbaceous Peonies do not require division, and some people dislike it. However, before replanting an established plant, you must divide it if you must transfer it. Do this in the fall, after the foliage has totally withered away. The young plants typically take a few years to flower, and each division ought to have three to five eyes.
End-of-Season Care: To prevent pests from overwintering, Herbaceous Peonies’ foliage should be pruned back in the fall and removed from the area. After the ground freezes, mulch new plants with salt marsh hay or evergreen boughs.
If spring rains don’t do it for you, water crops thoroughly in the early spring. Apply aged manure or compost on the sides of plants. If there was botrytis blight the season before, spray young shoots with Bordeaux mix or lime sulphur and cover the ground around the plant with a thin (quarter-inch) layer of sand. Place stakes or other supports right away.
Mid-Spring: Keep an eye out for botrytis blight symptoms and treat accordingly, removing any affected tissue as away. Train while plants are growing through plant supports. If you want flowers that are exhibition-size, remove the side buds.
Late Spring: Deadhead peonies diligently, cleaning the garden of any petals or blossoms that have fallen.
Fall: Trim Herbaceous Peony stems to the soil’s surface and remove them from the area. If required, dig and divide plants right away. After the ground freezes, mulch newly planted areas with evergreen boughs or salt marsh hay.