How to Grow, Harvest, and Show Off Garden Peonies Leave a comment

Pretty peonies are the quintessential romance flowers. They come by their popularity as a wedding flower and Instagram-worthy showpieces because of their truly breathtaking form and sweet fragrance. This everything guide to peonies covers the history and symbolism of peonies, the different cultivars, as well as how to grow, harvest, and use garden peonies.

Perfect Peonies How to Grow, Harvest, and Dry Garden Peonies

I’ve never met a person who didn’t love peonies. All it takes is one neighbour to grow a beautiful peony flower to make you run out to the garden centre to get your own.

Peonies are incredibly giving flowers once they get established. They bloom large, showy flowers yearly and can remain in your garden for your entire life.

Here’s how to grow peonies and harvest them to brighten up the home.

Freshly Cut Peonies in the Garden
Harvest peonies at different stages to ensure a long vase life of flowers.

Expert Tips for Growing Peonies

Plant peonies in full sun, where they can get 6-8 hours of sunlight a day.
Peony flowers are drought-tolerant and require no additional fertilizer.
Peonies require staking as the plants can get quite top-heavy when in bloom.
If it rains, gently shake the water collected in the flowers to stop them from weighing down.
To cut flowers, harvest them when they’re still a squishy bud, known as the marshmallow stage.

Harvesting Double Bomb Peonies
Peonies can bloom starting in April through to June.

History and Symbolism of Peonies

In Eastern cultures, the peony is known as the “king of flowers” and a symbol of wealth, honour, and beauty. Peonies are often seen at weddings and are sometimes reserved for royalty. It was the national flower of China for over 250 years before being replaced.

In Greek mythology, it is said that peonies are named for Paeon, a physician to the gods, while there are other stories of beings turned into peonies out of jealousy or immortality. Many intertwined tales around the world of peonies follow the themes of high value as a medicinal plant and as a striking beauty.

In both European and Asian countries, these beautiful flowers were traditionally grown for their medicinal properties. Paeonia lactiflora is often used in Chinese herbal medicine. Asian countries use a decoction made from the root to treat inflammatory diseases like rheumatoid arthritis, lupus, hepatitis, muscle cramping, and fever.

The flower buds and petals are often used as a tea. Peony petals look beautiful served raw in salads but the buds and pedals can also be fried.

Peony Varieties

There are thousands of different cultivars of peony that are divided into three major groups.

Herbaceous or Garden Peonies are sun-loving garden perennials which include species such as the medicinal Paeonia lactiflora.

They are low maintenance in Zones 2 to 8 and require little water once established. They can be an investment to get started in the first few years, but after that, they will require little maintenance to bloom prolifically for many years to come.

Tree Peonies (Paeonia suffruticosa) grow in Zones 4 to 9 and bloom a bit earlier than garden peonies (April and May).

The stems are woody and stay above ground all year, growing 4 to 7 ft tall with beautiful foliage and enormous flowers that can be up to 10 inches across.

Itoh Peonies are a hybrid of garden peonies and tree peonies. They grow in Zones 4 to 9 and bloom in June.

Like many hybrids, these plants are bred for the best qualities of their parents. With Itoh peonies, you can find the prettiest flowers, the most striking foliage, and the most easy-going habit. Itoh peonies can be expensive, but you’ll know why when you see them in the garden.

Many different types of peonies
Herbaceous peonies can live 100+ years if taken care of well.

Peony Flower Types

There are six types of peony flower forms that peonies are known for, each striking and showy in their own way:

single
semi-double
double
bomb
Japanese
anemone

The single, semi-double, Japanese, and anemone forms grow petals around colourful stamens and pistils. In the double and bomb forms, the blooms are full of ruffled petals, and no pollen is visible.

Red and light pink peony bouquet
Peonies come in many colours, but red and pink hues are the most popular.

How to Grow Herbaceous Peonies

These cool-climate perennials thrive in Zones 2 to 8 and bloom in late spring, generally between April and June. Here’s how to grow peonies!

Soil and Location

Plant peonies where you plan to keep them. They take a little while to get established. If planting from bare roots, it can take three years before they provide plenty of blooms.

Potted peonies will bloom faster. But still, they like to be established in the garden to produce the most blooms. So once you set them in place, they could be happy to produce flowers for well over 50 years.

But every time peonies get moved, they have to re-establish themselves. Garden peonies aren’t picky about soil, but they do like to have good drainage.

Light

To flower well, these sun-lovers need at least six hours of sun in the spring and summer months. They also require cool soil in the winter to stimulate spring growth.

Peonies in the sun
Plant peonies in full sun.

Water

Peonies are drought-tolerant and don’t require additional fertilizer to bloom. Adding compost as a topsoil dressing annually should be enough to build healthy soil and keep peonies happy.

While the plants are sturdy, the flowers are more delicate. Overhead watering and heavy rain can be too much for the blooms, knocking them over and breaking the stems.

After the rain, head out to the garden and gently shake each one of the blooms to release the weight of water captured inside. This will help them to perk back up.

For those blooms that can’t be saved, cut the stems and bring the flower into the house to enjoy in a vase.

Pale Pink Double Peony
Peonies don’t like waterlogged soil, so only water as necessary.

Staking

Peonies’ giant, fluffy blooms get heavy, so many peony plants require staking. There are commercial peony stakes that you can purchase, but my favourite option is a peony chair.

Peony Garden Chair Support
This peony chair is a great way to reuse an old kitchen chair or one that you buy secondhand.

Around my eclectic East Vancouver neighbourhood, it’s not uncommon to see a seatless chair frame standing in the garden beds to hold up peonies. As we live in a rainy climate, it’s absolutely necessary to have something strong to hold those blooms up.

Otherwise, this is what happens!

Peonies Flopped Over
If your peonies ever get this way, shake them of water and add a stake pronto! If they’re too far to save, snip them and turn them into cut flowers.

Pests

Pests are generally not a problem, even though you may see ants on the peony buds before they open. There’s a common tale that the ants help the peony blooms to open, but the ants are really just drawn to the sweet nectar.

When to cut double bomb peonies
Ants can actually help keep away other more harmful pests from peonies.

How to Divide Peonies

Divide peonies in the fall after the plant has gone dormant. If you have forgotten, you can also divide them in the early spring before the flowers and leaves appear.

Once the leaves have formed on the stems and flower buds are showing, it’s best to wait until the following fall to divide them. Remember that it takes time for peonies to re-establish when they’re moved or divided and transplanted.

Fiskars Flower Pruning Tools
Only divide peonies in the fall to allow the plant to get enough energy stored for the winter.

How to Harvest Peonies for Cut Flowers

When cutting flowers for arrangements, to dry for craft projects, or for culinary or medicinal purposes, I put my all-purpose bypass pruners away and instead use the precision blades of floral pruners and snips.

Peonies have sturdy stems, but they are not woody, so light plant pruning shears are perfect. A low-friction coating means the bypass pruners won’t gum up with sap and bits of the plant.

Fiskars Flower Pruner with Peonies
Keep long stems when harvesting peonies to make it easier to place in vases.

Don’t cut any flowers for the first year the peony is getting established. In the second and third years, if you have to cut a few flowers, do so sparingly.

To make your flowers last long, keep a bucket of cold water with you, and use clean tools to make the cuts. Take a long stem for your peonies but leave at least three sets of leaves on the plant below the cut.

Making a peony bouquet
Harvest flowers in the morning, as that’s typically when they have the highest water content.

You can cut peonies for arrangements at the bud stage or when the blooms are opening. The earliest you can cut the flowers is when the buds are not quite open but a bit squishy when you pinch them. This is called the “marshmallow” stage because the bud should feel like a springy marshmallow.

Cutting them at this stage ensures that you have the longest-lasting blooms but cut them any earlier, and they won’t bloom in the vase. Immediately put the cut stems in cold water and keep them out of direct sunlight.

When to Cut Peonies
The bud on the right is too early, and the bud on the left is too late. The middle bud is the perfect “marshmallow.”

How to Arrange Peonies

You can keep the cut flowers in your fridge or a cool place for a few days to delay blooming. Add the flowers to lukewarm water to speed up blooming and place them in a well-lit area.

Remove any leaves from the stem that will touch the water. 

How to cut the leaves off a peony
Any leaves that sit in water will decompose and add bad bacteria to the water, making your flowers go bad sooner.

Cut the stems on a diagonal before adding them to a vase of water. They have heavy flower heads, so be sure the vase is heavy enough to hold those big blooms.

Cut the stems so that the blooms sit at an appropriate height just above the top of the vase. Stems that are too tall can cause the vase to topple over.

Pink Peony arrangement in a jar
Diagonal cuts allow the stems to soak up as much water as possible to stay hydrated.

The beauty of peonies doesn’t have to be seasonal. While gorgeous garden peonies only last in the garden for a few weeks and have a showy but limited vase life, you can preserve the beauty all year by drying the petals and making a gorgeous, naturally-scented peony bath salts recipe.

Pink Peony Bath Salts
Peony petals retain their colour exceptionally well for craft projects.

Frequently Asked Questions About Peonies

When do peonies bloom?

Tree peonies are first to bloom in mid-spring, typically around and of April to May. Herbaceous peonies bloom next in late spring, around the beginning of June.

When are peonies in season?

Peonies can bloom as early as April through to June. Their blooming time is quite short, only lasting 7-10 days. So enjoy your peony flowers while you can!

When should I plant peonies?

Peonies can be planted in spring or fall, but fall is preferable. Do so in September or October. If you missed your opportunity to plant in the fall, you can plant them in early spring as soon as the soil has thawed out enough.

Do peonies need full sun?

Yes, peonies require full sun of 6-8 hours of direct sunlight a day.

Displaying Double Bomb Peonies
The flowers will continue out of the “marshmallow” stage into these full blooms.

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