10 Things to Know About Growing Peonies (Before You Plant!)
Some flowers quietly earn their place in a garden…
And then there are peonies.
The first time mine bloomed, I remember standing there longer than I meant to, coffee in hand, just taking them in. Those big, ruffled blooms feel almost too beautiful to be real. And the best part? Once they’re happy, they’ll return year after year with very little fuss.
But here’s the thing most people don’t realize…
Peonies are incredibly long-lived—but they can also be a bit particular at the start.
If you get a few key things right early on, you’ll have decades of blooms. Miss them, and you may be waiting… and wondering… why nothing is happening.
So let’s walk through the 10 things that truly matter when growing peonies.
1. Peonies Do Not Like to Be Planted Too Deep
This is the number one mistake—and the reason so many peonies never bloom.
Those little pink “eyes” on the root should sit just 1–2 inches below the soil surface.
Plant them deeper, and you’ll likely get leaves… but no flowers.
If your peony has been in the ground for years and refuses to bloom, this is the first thing I would check.
Planting Peonies Right
2. They Need Cold Winters to Bloom Well
Peonies are not fans of mild winters.
They actually require a period of cold dormancy to set buds properly. This is why they thrive so beautifully in many parts of the country with true seasonal change.
If you’re gardening in a warmer zone, you can grow peonies—but look for varieties known to perform better in mild climates.
3. Full Sun Is Best (But a Little Afternoon Shade Helps in Hot Climates)
Peonies bloom best with at least 6 hours of sun.
In hotter areas (like many California gardens), a bit of afternoon shade can actually help blooms last longer and prevent fading.
4. They Are Slow to Settle In (But Worth the Wait)
This is where patience comes in.
Peonies often take:
- 2–3 years to really get going
- Time to build strong root systems
The first year, you may only see a few blooms—or none at all.
But once established?
They become one of the most reliable plants in the garden.
5. Good Airflow Helps Prevent Disease
Peonies are generally low-maintenance, but they can develop issues like powdery mildew if crowded.
Give them:
- Space between plants
- Good airflow
- Room to breathe
This one small step makes a big difference.
6. They Don’t Need Heavy Fertilizing
This surprises a lot of people.
Peonies are not heavy feeders. In fact, too much fertilizer (especially high nitrogen) can lead to:
- Lots of leafy growth
- Fewer blooms
A simple yearly top-dressing of compost is often more than enough.
7. Support the Blooms Before They Flop
Those big, beautiful blooms can get heavy—especially after rain.
Adding support early in the season (like a simple ring or grid) keeps everything upright and looking lovely.
Do it early… before they need it.
DIY Peony Supports
8. Ants on Peonies Are Completely Normal
This one worries people every year.
Those ants you see crawling on the buds?
They’re just after the sweet nectar—not harming the plant at all.
No need to treat or remove them. Once the blooms open, the ants move on.
9. Fall Cleanup Matters More Than You Think
At the end of the season, peonies should be cut back to the ground.
This helps:
- Prevent disease
- Keep plants healthy for next year
It’s a simple step that makes a noticeable difference.
Related: When to Cut Back Peonies
10. They Can Live for Decades (and Get Better with Age)
This might be my favorite thing about peonies.
Once established, they can:
- Live for 50+ years
- Bloom more beautifully each season
They’re one of those plants that truly become part of the story of your garden.
And in a world where so much feels temporary…
That feels pretty special.
What to Avoid When Growing Peonies
- Planting too deep (the biggest mistake)
- Too much fertilizer
- Crowding plants too closely
- Expecting instant results
- Moving them too often (they prefer to stay put)
A Simple Companion Idea
Peonies pair beautifully with:
- Salvia
- Catmint
- Foxgloves
- Roses
These help fill in the garden once peonies finish blooming and keep the space looking full and layered.
Final Thoughts
Peonies aren’t difficult… but they do ask for a little understanding.
Get them planted right, give them sun and space, and then let them do what they’ve done for generations—return each spring, a little fuller, a little more beautiful than the year before.
And truly, that’s the kind of gardening I love most.
Happy Peony Growing!
Hi, I’m Pamela
With 45 years of hands-on gardening experience, I love sharing practical tips, proven techniques, and inspiration drawn from my own gardens. My goal is to nurture your confidence, spark your passion, and help make every step of your gardening journey more enjoyable.
