The peony has the fattest, most delicious petals and rich green foliage, making it outrageously attractive when it is in bloom. From spring to summer, savor stunning floral displays. Learn how to care for, grow, and plant peony.
About Peonies
Peonies are a perennial that will steal your breath away every year. The plants may even outlive you—some have been reported to survive for at least a century.
When Is Peony Season? When Do Peonies Bloom?
Depending on your location and the kind you are planting, peonies bloom from late spring to early summer.
You may extend the peony season across several weeks and take use of those magnificent blossoms for as long as possible thanks to the abundance of nurseries that provide early, midseason, and late blooming types.
Peonies may thrive as far south as Zones 7 and 8, and they are hardy to Zone 3. The key to success in the majority of the United States is to provide full light and well-drained soil. Peonies even enjoy the winter’s coldness because it helps their buds grow.
Types of Peony Flowers
You can pick from six different varieties of peony flowers: anemone, single, Japanese, semi-double, double, and bomb. The odors of different plants also differ; some, like “Festiva Maxima” and “Duchesse de Nemours,” have seductive rose-like aromas, while others have a lemony scent or none at all.
Where to Plant Peonies
When planted as a low hedge or along sidewalks, peonies make excellent sentinels. As majestic and dignified as any flowering shrub, the peony’s bushy cluster of attractive glossy green leaves lasts all summer before turning purplish-red or gold in the fall.
Peonies work nicely with irises and roses in mixed borders and blossom alongside columbines, baptisias, and veronicas. Plant pink peonies with blue Nepeta or violets, then surround white peonies with yellow irises and a froth of forget-me-nots.
Peonies are not overly picky, but you should pick your place carefully because they dislike disruption and do not transplant well.
Although they can survive in partial shade, peonies like full sun, and they flower at their best in an area that receives 6 to 8 hours of sunlight per day.
Because of its huge flowers, peonies can become top-heavy in severe winds. Therefore, provide shelter. (If necessary, stakes can be used to hold them up.) Planting too close to trees or bushes will cause peony to compete with them for nutrients, sunlight, and moisture.
Grow peony in rich, wet, humus-rich soil that is deep, fertile, and well-draining. pH in the soil should be neutral.
When to Plant Peonies
As long as they are planted correctly and become established, peony plants require minimal upkeep. However, keep in mind that they do not adapt well to transplanting, so you should consider this when choosing your planting location.
- Plant peony in the fall: in the majority of the United States, in late September or early October, and even later in the fall in Zones 7 and 8. Your planting zone can be found here.
- If you need to move an established plant, the fall is the ideal season because the plant will be dormant.
- About six weeks before the ground freezes, peonies should be planted.
- While planting peonies in the spring is absolutely a possibility, the results aren’t always favorable. They often trail behind plants planted in the fall by roughly a year, according to experts.
How to Plant Peonies
- Peonies are typically offered as divisions of a 3- or 4-year-old plant, bare-root tubers with 3 to 5 eyes (buds).
- Peonies should be placed 3 to 4 feet apart to allow for enough air circulation. The development of disease can be facilitated by stagnant, damp air.
- In a sunny area, dig a generously sized hole that is about 2 feet deep and 2 feet wide. The inclusion of organic matter in the planting hole will improve the soil. Add additional compost to the soil to improve it if it’s sandy or heavy. Add about a cup of bonemeal to the ground. Find out more about soil improvements and getting the soil ready for planting.
- The roots should be positioned in the hole just 2 inches below the soil’s surface, with the root’s eyes facing upward on top of a mound of soil. Avoid planting too deeply! Choose early-blooming species, put them approximately 1 inch deep, and provide some shade in southern states.
- Backfill the hole after that, being careful to prevent soil settlement and a 2-inch root burying. Gently tamp the ground.
- Plant a container-grown peony no deeper than it was when it was in the pot.
- When planting, give everything plenty of water.
How to Care for Peonies
Young peony take time to develop, just like children. In order to establish themselves, blossom, and flourish, they typically require a few years. They eventually leave home on their own, fully grown and adjusted… No, that’s just kids, I suppose.
Peonies benefit from gentle neglect. They don’t require digging and dividing every few years like the majority of perennials do.
- Don’t use any fertilizer. Before planting, till the soil thoroughly while adding compost and a small amount of fertilizer.
- Early summer, after the peonies have flowered and you have deadheaded the blooms, is the ideal time to apply fertilizer (such as bonemeal, compost, or well-rotted manure) to a soil that is deficient in nutrients. Keep fertilizing to a few years at most.
- assist the stems Peonies’ stems, which occasionally are not strong enough to hold their enormous blossoms, are the only part of their structure that may be considered weak. Think of structures that allow the plant to grow through the middle of the support, like three-legged metal peony rings or wire tomato cages.
- Peony blossoms should be deadheaded as soon as they start to fade, cutting to a sturdy leaf so that the stem doesn’t protrude through the foliage. To prevent any infections from overwintering, trim the foliage to the ground in the fall.
- Avoid covering peonies with mulch. For the first winter following planting, you can VERY LOOSELY mulch with pine needles or shredded bark when the winters are bitterly cold. In the spring, get rid of the mulch.
Peonies bloom between late spring and early summer, but by planting a variety of cultivars, you may arrange your garden for a succession of blooms from mid-May to late June. Here are a few options:
- ‘Early Scout’ has red solitary flowers that open incredibly early.
- “Firelight”: very early-blooming, single, pale-pink flowers
- ‘Karl Rosenfield’: double, midseason bloomer with substantial crimson blooms
Should peonies be pruned back for the winter?
It is recommended to prune your peonies in the fall before winter and to remove all plant debris.
According to Pangborn, peonies are prone to foliar fungal problems. If sick foliage is left on the plant during the winter, it may expose new growth to diseases that have overwintered on the old leaves and caused damage.
Peonies should be pruned before winter to keep your garden organized. Green claims that if you don’t cut them, the leaves and stems would rot, turn to mush, and eventually tumble to the ground.
How should my peony be winterized?
Depending on the time of year, peonies need to be pruned. The leaves will naturally begin to dry up and the plant will begin to change color to a yellowish hue. That is typical.
Therefore, don’t worry about it. Give your peony the wintertime attention it needs for the greatest blooms and even more flowers the following season.
Your peonies should begin to wilt after the first frost. This is the time to make a reduction. This gets peonies ready for the coming winter.
Herbaceous peony varieties can be pruned back as follows:
- Cut the leaves all the way back with a pair of fine, sharp garden shears. With the shears, cut them off of the stem until it is naked.
- It is simpler to trim back the stem when the leaves are not in the way.
- Trim the stem so that it is 1 above the ground.
- To prevent stepping on the stems over the winter, place a plant marker next to them.
I’m done now. Usually, it is all that is required to prune peonies before winter.
The process could occur at various periods depending on the peony cultivar you have.
The leaves shouldn’t be saved since they may be infected with bacteria or fungus because they wilted. Throw them away.
The “eyes of the peony,” as they are known, are situated close to the soil’s surface. You shouldn’t have to worry about them being exposed to the frost because they are comfortable with it.
For cultivars with intersections:
- Remove the dead foliage.
- Reduce the stem’s height to 6 above the ground.
- To avoid damaging the stems throughout the winter, indicate the locations of the stems.
Like the herbaceous peony cultivars, you can reduce it to 1 from the soil if you live somewhere where wintertime lows are below 40°F.
How far back should peonies be clipped for the winter?
1. After a heavy frost, trim the stems at or close to ground level.
2. Regardless of whether the peony have a disease or not, completely remove all plant waste and dead leaves. It’s possible that the dead foliage has fungus spores that are invisible to the naked eye. If the plants were sick, you should carefully dispose of them in the garbage; under no circumstances should you compost them.
“Garden peony growing.” Home Pest News & Horticulture, Iowa State University.
What happens if peonies aren’t pruned back?
In the winter, you don’t really need to do anything to or for your herbaceous bush peony plants. However, if you discover that you neglected to remove the stems in the fall, you still have time to do so.
Herbaceous (bush) peony, such as the intersectional Itoh peonies, eventually lose their leaves and stems when the plants hibernate for the winter. The stems will tumble to the ground and turn “mushy,” and the leaves will begin to decay. That is normal. The plant’s roots are not perishing; instead, new shoots and stems will appear in the spring. People may panic and believe their peony has perished, but this is simply the bush peony’s natural development cycle.
Be careful not to cut any exposed peony ‘eyes,’ which are typically pink or crimson buds and serve as the stems for the following year, while cutting off peony stems that are close to the ground. Put the stems and leaves in the trash after disposal. Peony stems and leaves shouldn’t be composted since they can harbor botrytis, a fungal disease, especially in moist environments. Each peony plant’s surrounding area should be cleaned up.
Most places don’t require mulching peonies. If you mulch your herbaceous bush peony plants, make sure to take it off in the early spring to avoid burying the roots too far. Years of mulching or applying bark dust around bush peony will eventually cause the roots to be buried too deeply, which could lead to fewer spring blooms. Just an inch or two of soil should remain above the roots of herbaceous bush peony after you remove that.
Additionally, it is normal for a mature peony’s crown to gradually heave up through the ground and display some exposed “eyes” in the winter. Don’t worry, peony plants enjoy the harsh winters.
Tree peony leaves must be removed from the ground and branches when they start to degrade. A tree peony’s branches are left hanging, barren and naked for the winter, rather of being chopped down in the fall. Don’t worry too much if you or a helper cuts a tree peony down to the ground and you panic or feel dejected. It’s likely that the roots have grown deeply enough to support spring branch growth. It might grow into a magnificent, revitalized tree peony in two or three years. I’ve seen it happen, so I know. In contrast to bush peony, tree peonies prefer more soil on top of the roots. Try adding a few inches of soil around the base of the trunk of a tree peony if it has lost its vigor. Yes, it is exactly the reverse of what is suggested for bush peony.
You can go outside again after the snow melts and it’s nice out to work on any “lost” stems.
For the winter, should I mulch my peonies?
Peonies should be pruned almost to the ground in the fall after the leaves turn yellow. However, take care not to remove any of the reddish or pink buds, also known as “eyes,” as the eyes, which are found close to the ground, are the beginnings of the stems for the following year. (Don’t fret; the eyes won’t become frozen.)
What are peony used for in the fall?
Herbaceous peonies need to be severely pruned back to the ground in the fall. Pruning is unnecessary for tree peony. In the fall, all that is required is the removal of the faded seed heads. In the autumn, resist the urge to remove the withered leaves; instead, let it fall off naturally. Tree peony should not be severely pruned because they are sometimes grafted onto herbaceous peonies.
Try to avoid walking on the herbaceous types’ newly emerging buds when weeding borders.
Peonies occasionally develop suckers at the plant’s base. David Hurrion discusses what to do with them in this passage:
How to propagate peonies
Herbaceous peonies can be multiplied in the fall through division. Lift the plant with a garden fork after trimming back the wilted foliage. Cut off pieces of the crown with a knife after removing as much of the garden soil as you can. There should be plenty of root in each part and at least three buds. Replant as soon as possible in the garden.
Try not to split tree peonies. Alternatively, you might be able to attempt sowing seed or stacking a flexible stem.
Growing peonies: problem solving
Ants are drawn to the peony buds. It’s common to witness ants swarming around the buds. They won’t harm the plant, so don’t be concerned.
Peony wilt is by far the most prevalent issue. The stems decay as a result of this botrytis. Planting peonies too closely together is best avoided. Remove any leaves with dark spots on them to help stop the fungus from spreading. To prevent reinfection in spring, remove all the foliage before trimming back herbaceous plants in the fall.
In this Gardeners’ World video clip, Carol Klein provides a practical guide on identifying and treating peony wilt as well as advice on how to clean secateurs to prevent reinfection: