Want peonies that come back every spring with those huge, romantic flowers? Don’t start with fertilizer. Start with the planting depth. Plant a peony too deep, and you can end up with a healthy-looking plant that stubbornly refuses to bloom.

Peonies are remarkably long-lived perennials. With the right location and a little patience, they can stay in the garden for decades. The original Recipesnug guide covers the basics, but one important detail deserves much more attention: how you plant the roots can determine whether you get flowers at all.

1. Pick the Sunniest Spot You Have

Peonies aren’t the best choice for a dark corner.

They perform best in full sun, and Illinois Extension recommends a location with full sun and moist, well-drained soil. Too much shade can lead to poor flower production.

Ideally, choose a spot that gets around 6–8 hours of direct sunlight.

If a tree has gradually grown over an established peony and the plant has stopped flowering as well as it used to, the loss of sunlight may be part of the problem.

2. Give the Roots Well-Drained Soil

Peonies like moisture, but they don’t want their roots sitting in water.

Choose soil that drains well. If your garden stays soggy after rain, improve the planting area before putting the peony in the ground.

Adding organic matter can help improve soil structure, but don’t turn the planting hole into a giant pocket of compost. The goal is to create a good growing area around the plant, not an isolated container of rich material.

3. Plant Peonies in Fall When Possible

Fall is generally the preferred planting season for bare-root peonies.

Planting then gives the roots time to establish before the following growing season. Illinois Extension also notes that fall is an appropriate time for dividing and transplanting established peonies.

If you receive a bare-root peony, don’t leave it sitting around for weeks.

Get it planted as soon as practical, following the nursery’s instructions for your specific plant.

4. Don’t Plant the Peony Too Deep

This is the mistake I would check first if your peony grows beautifully but won’t flower.

Look for the pink or reddish “eyes” on the crown of the root.

Those eyes should sit only about 1–2 inches below the soil surface. Illinois Extension recommends no deeper than 2 inches.

Don’t bury the roots several inches deep like you might with some other perennials.

Too deep = lots of leaves, few or no flowers.

This is one of the most important peony-growing rules.

5. Give Each Plant Enough Space

A young peony may look tiny when you plant it.

Don’t let that fool you.

Give it enough room to develop into a mature plant without being crowded by neighboring shrubs or perennials.

Spacing also helps with airflow, which can be useful when you’re trying to keep foliage healthy.

If you’re planting several peonies, check the mature size of the specific cultivar and follow the nursery’s spacing recommendation.

6. Water Well After Planting

After planting, give the root zone a thorough watering.

Then keep an eye on the soil while the plant establishes.

You don’t need to keep it constantly soaked. The goal is consistent moisture while the roots are getting established.

For established perennial gardens, Illinois Extension recommends deep, less-frequent watering rather than frequent shallow watering.

During hot or unusually dry periods, check the soil rather than relying on a fixed calendar.

7. Don’t Keep Feeding It Fertilizer

This is another common mistake.

You see a peony that isn’t flowering and think:

“It must need more fertilizer.”

Not necessarily.

Too much fertilizer—especially excessive nitrogen—can encourage lots of leafy growth at the expense of flowers. Illinois Extension specifically warns that over-fertilizing can reduce peony flowering.

Established peonies with good growth may need very little fertilizer.

If your soil is healthy, don’t automatically feed the plant every time you notice a lack of blooms.

8. Keep Mulch Away From the Crown

Mulch can help conserve moisture and suppress weeds, but don’t pile it directly against the peony crown.

A thick, wet layer sitting against the crown can encourage rot.

Illinois Extension recommends leaving air space between mulch and the crown of perennials.

Keep the mulch around the plant—not on top of the growing point.

9. Support Heavy Flowers Before They Flop

This is the part you learn the hard way after the first heavy rain.

Your peony looks perfect in the morning.

Then a storm comes through.

Suddenly those enormous flowers are lying on the ground.

If you’re growing varieties with large, heavy blooms, install a peony support ring or other suitable support early in the season, before the stems become difficult to manage.

The foliage will eventually grow through the support and hide much of it.

10. Deadhead After Flowering

Once the flowers fade, remove the spent blooms.

This keeps the plant looking cleaner and prevents it from putting energy into developing unwanted seed heads.

But don’t cut the entire plant down just because flowering has finished.

The leaves still matter.

The foliage continues photosynthesizing and helps the plant store energy for next year’s growth.

11. Let the Leaves Stay Until Fall

This is especially important if you’re disappointed by the number of flowers next year.

After blooming, the peony isn’t finished working.

Its leaves are still producing energy.

Let the foliage remain healthy through the growing season rather than cutting it back immediately after the flowers disappear.

Wait until the foliage has naturally declined in fall before cutting the plant back.

12. Watch for Disease

Peonies are generally tough plants, but they can still experience problems.

Potential issues include Botrytis, powdery mildew, anthracnose, and other fungal diseases.

Watch for:

• Brown or black spots
• Damaged stems
• Gray or fuzzy growth
• Powdery coatings on leaves
• Buds that turn brown instead of opening

Good spacing, appropriate watering, and removing diseased plant material can help keep problems from spreading.

13. Don’t Panic If Your New Peony Doesn’t Bloom

This is where patience pays off.

A newly planted peony may not give you a spectacular flower show immediately.

Illinois Extension notes that peonies can take 2–3 years to establish and bloom well.

So if you planted one last year and it’s producing leaves but no flowers, don’t immediately dig it up.

First check the basics:

Is it getting enough sun?

Is it planted too deeply?

Is the soil draining well?

Have you overfertilized it?

If those conditions are right, it may simply need more time.

14. If an Established Peony Suddenly Stops Blooming, Look at the Location

A peony that used to bloom well but suddenly stops deserves a closer look.

Has a nearby tree grown larger?

Is a shrub blocking the sunlight?

Are tree roots competing for moisture?

Excessive shade and competition from tree roots can contribute to poor flowering.

Sometimes the plant isn’t the problem.

The garden around it has changed.

15. Divide Only When You Actually Need To

You don’t have to divide a peony just because it’s old.

In fact, established peonies can live and flower for many years without being divided. Illinois Extension notes that they may never need dividing.

If you do need to divide one, fall is a suitable time.

When dividing, make sure each section has several healthy eyes. Illinois Extension recommends divisions with at least 3–5 eyes for better establishment.

Why Your Peony Has Leaves but No Flowers

If this is happening to you, don’t start throwing fertilizer at it.

Check these four things first:

1. It’s planted too deep

This is one of the biggest culprits.

The eyes should be no more than about 2 inches below the soil surface.

2. It doesn’t get enough sun

Peonies flower best in full sun.

3. It was overfertilized

Too much nitrogen can produce impressive foliage but disappointing flowers.

4. It’s simply too young

Give a newly planted peony a couple of seasons to establish.

Fix those before doing anything drastic.

A Simple Peony Care Routine

When planting:
Choose full sun and well-drained soil. Plant the eyes only 1–2 inches below the surface.

After planting:
Water thoroughly and keep the soil reasonably moist while the plant establishes.

Spring:
Watch for new shoots and install support before the stems become heavy with flowers.

During flowering:
Enjoy the blooms and water during prolonged dry periods.

After flowering:
Remove spent flowers but leave the foliage intact.

Summer:
Monitor for disease and keep the plant watered during extended dry weather.

Fall:
Once the foliage dies back naturally, cut it down and clean up the area.

The Biggest Peony Mistakes to Avoid

If you remember nothing else, avoid these:

Planting too deeply
The classic reason for a healthy-looking peony that won’t bloom.

Too much shade
Peonies need plenty of sunlight for good flowering.

Overfertilizing
More leaves don’t necessarily mean more flowers.

Poor drainage
Constantly wet roots can cause serious problems.

Cutting foliage too early
The leaves need time to build energy for the following year.

Giving up too soon
Young peonies can take several years to settle in.

Final Thoughts

Peonies have a reputation for being a little fussy, but the truth is that they’re often easier than they seem.

Get the planting depth right, give them enough sun, and don’t overfeed them.

That’s the foundation.

After that, consistent moisture, good drainage, a little support for heavy flowers, and basic cleanup will take you a long way.

And if your new peony doesn’t bloom immediately, don’t assume you’ve failed.

Give it time.

A healthy peony can reward that patience for years—and sometimes for decades.

The most important tip to remember? If your peony has beautiful leaves but refuses to flower, check how deeply it’s planted before reaching for the fertilizer.