In most climes, peonies should be planted in the fall, though you can do it successfully in the spring in colder regions. But it’s crucial to understand that planting timings will affect when you will be rewarded with peony blossoms because peonies bloom from late spring to early summer.
Peonies come in a wide range of kinds, including intersectional hybrids that combine the other two types as well as herbaceous, bush peonies that die back in the winter, tree peonies, and winter-dying bush peonies. Some are more resilient than others and can withstand colder temperatures during the winter.
Peonies will typically thrive in southern Zones 7 and 8 and are tough enough for Zone 3 where the minimum average temperature ranges from -30F/-34C to -40F/-40C.
The minimum average temperatures in these areas range from 0F/-18C to 10F/-12C for Zone 7 and from 10F/-12C to 20F/-6C for the kinder Zone 8.
The Kppen climate classification system, which has been used in North America for more than a century, is explained in detail by the National Weather Service National Oceanic and Atmospheric Administration.
TROPICAL CLIMATE
In regions with a warm tropical climate, monthly average temperatures are always over 64F/18C and there is more than 59 inches of yearly precipitation.
It’s ideal to plant your peonies in the late fall because of how hot it is now. As a result, the roots will have more time to grow throughout the chilly winter months.
DRY CLIMATE
Potential transpiration and evaporation exceeds actual rainfall in arid areas.
The two most crucial aspects of growing peony in a dry area are selecting kinds that will thrive there and providing adequate hydration. Sow seeds in the fall.
CONTINENTAL CLIMATE
Continental climate zones have average midsummer temperatures of 50F/10C, cool to warm midwinter temperatures of less than -22F/-30C, and cold winters.
Peonies should also be planted in the fall in continental regions. Since the environment is colder, you can also plant in the spring.
POLAR CLIMATE
The entire year is frigid in polar regions. The average annual hottest temperature is less than 50°F (10°C).
Depending on whether a location is in Zone 1 or 2, wintertime lows can reach -50F/-46C or range from -40F/- 40C to -50F/-46C on average.
Try to grow peonies because they thrive in chilly climates, but do so by planting them in the summer (mid-June).
Can you plant peonies in the summer?
According to Eldred Steinkopf, peonies that were purchased at a neighborhood garden center in a pot can be planted at any time in the spring or summer.
About six weeks before the ground freezes, peonies should be planted. According to The Old Farmer’s Almanac, they are often planted in September and October in most of the United States, but depending on the region, they may be planted later in the fall.
According to the nonprofit American Peony Society, peonies can be planted in most growing zones anytime between late August and October.
According to the USDA, peonies develop from underground stems called as tubers that store food made by the leaves, and new development appears as buds or eyes on the tubers.
In the late summer and fall, venues sell tubers, and in the spring, certain locations sell fully grown peonies. But few of these survive the summer’s dry weather since they are pricey. The federal agency advises purchasing and planting tubers in the fall.
Although a tuber can have many eyes, they need to have three to five in order to survive and grow. The second year after planting, peonies with three to five eyes may produce good flowers.
According to the USDA, it can take one planted from tubers with fewer than three eyes three to five years to yield more than a few modest blooms.
Peonies can be planted in the spring, although they usually don’t grow as well. According to experts, they often lag behind plants that are planted in the fall by roughly a year.
According to the USDA, you can plant fully grown peonies in the spring, but since they are already growing when you plant them, they are far more difficult to maintain than tubers planted in the fall.
When should peony be planted?
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
Can I plant peonies after Labor Day?
The optimum time to plant peonies is in the fall, any time between late September and early December. When purchasing a potted plant in the spring or summer, it is better to wait until fall to transplant the plant. To ensure good drainage, you can temporarily bury the entire pot where it will be planted, covering the soil beneath it with a few inches of gravel.
Follow these planting instructions in the fall:
Make a deep hole that is at least 24″ wide and 18″ deep. Rich, humus-rich soil as well as a lot of compost, composted manure, or peat moss should be used to fill the hole’s bottom.
Remove the plant from its pot with care, being sure to untangle any circling or tangled roots.
Place it there and backfill the hole with the same soil mixture as you go. When planting is finished, make sure the top of the plant’s bud “eyes” is no lower than 2 inches below the top soil level, taking into consideration any additional mulch layer you’ll add.
Can I plant peony roots without first soaking them?
The peony’s lengthy life is one of its greatest draws, in my opinion. Herbaceous peonies have been known to bloom consistently for more than 50 years, occasionally outliving the gardeners who first planted them! But the care you take in setting them up is the secret to their durability.
In my experience, the first few leaves turning color in the fall are the best time to sow bare root peony tubers. After a plant is described as being “bare root,” it signifies that when it was dug up from the ground, all of the soil surrounding the tuber was removed. Since bare root peonies are less expensive than container-grown plants and may be planted in the autumn, they have more time to establish a strong root system and will be better prepared for robust growth the following spring.
The first thing you should do when you open the package of bare root peony, whether you bought them from a neighborhood garden center or via mail order, is to make sure the plant is healthy. The tubers have to be solid, meaty, and mold-free.
In order to rehydrate bare root plants before planting, it is a good idea to soak them in a pail of water for two to four hours.
If the tubers can’t be planted straight away, keep them in their packaging in a cold, dry location, such a garage or basement. Check on the tubers occasionally to make sure they aren’t turning soft or moldy because warmth and moisture will encourage them to begin developing. They can be stored in this manner for about five days.
Planting Location for Peonies
Select a location with well-drained, slightly acidic soil that receives direct sunlight. Additionally, keep in mind that once established, peonies do not respond well to transplanting, so choose a location where they can be left alone.
Planting Peonies
Peonies should be planted with their eyes facing upward and close to the soil’s surface. Now, this is a crucial point to remember. Too-deeply planted peonies won’t produce flowers. Plant the tubers no deeper than 2 inches in northern gardens. They are buried approximately a half-inch deep in my garden in the middle of the South. This enables the mulch I apply over the planting bed to discourage weed growth and aid in moisture preservation.
After planting, give the area plenty of water and keep it continually moist until the ground freezes.
What to Expect After Planting Peonies
Your peony will develop foliage in the spring of next year, but it can take a few seasons before it blooms profusely. But you’ll be rewarded for your patience. Peonies are plants that are designed for lengthy lives, and as they become older, their blossoms get better.
Many of the traditional cultivars, including “Sarah Bernhardt” and “Festiva Maxima,” have big, heavy blossoms that have a propensity to topple over. Caging them in the early spring, right after the stems appear above ground, is one of the best strategies to prevent this. To support them, use a straightforward metal ring with legs, or simply enclose the plant in a section of wire fencing.
Caring for Peonies After they Bloom
Peonies also have a wonderful smell, but in order to ensure that there will be a lot of bloom the following year, it’s crucial to remove the seedpods and fertilize each plant in late spring or early summer after deadheading the faded petals. You might sprinkle a 5-10-5 mixture around the base. Per plant, about a handful is sufficient. You only need to feed plants at this time because fertilizer overuse can produce burn, fewer blooms, and lanky growth.