A peony that has sat in the same spot for years starts to crowd its neighbors, and the clump gets thick enough that you start wondering about a move. Fall is the season for that job, when the plant is resting and the soil is still workable.
When Can You Move a Peony?
State guidance varies, so move the plant while it is resting during your local window. Where that falls on the calendar depends on your climate and on the peony type. In Iowa, September is the month for dividing and planting, while in Maine the window opens in late August or early September.
In cooler places, watch the soil and the plant to judge when roots can settle before the ground freezes. In Indiana, October is the month given for bare root stock, because dormant plants handle the digging better. Connecticut allows spring too, as soon as soil is workable.
The state selector just below this section takes you to the page for your state.
From the almanac
Peonies in your state
The dates on this page depend on where you live. Your state's page carries its frost dates, its USDA zones and the year laid out month by month.
Northeast
Southeast
- Alabama
- Arkansas
- Delaware
- Florida
- Georgia
- Kentucky
- Louisiana
- Maryland
- Mississippi
- North Carolina
- South Carolina
- Tennessee
- Virginia
- West Virginia
Midwest
Southwest
West
Pacific Northwest
Canada
How to Transplant a Peony
A peony dislikes being disturbed, so the goal is a quick move with as little root damage as possible. In Maine, divide or transplant a clump only every 10 years or so, and remember that it may need no move for decades.
- Dig a wide circle around the clump and lift it with as much root as you can, so that the thick storage roots are not snapped.
- Wash or shake off the soil and look the clump over, so you can see where the buds sit and divide the clump cleanly.
- Prepare the new hole before the plant comes out of the ground, so the roots are not left drying in the open air.
- In Iowa, plant the division with its buds 1 to 2 inches below the soil surface.
- Space plants 3 to 4 feet apart in Indiana’s advice, so air can move through the leaves and each clump has room to grow.
- Water the soil in around the roots and firm it gently, so no air pockets are left against the roots.
Mulch comes later, after the ground has chilled. In Kentucky, a 4- to 6-inch layer goes over new plantings in mid- to late November. Expect a pause in flowers too. Divided plants may take 2 to 3 years to recover and bloom well in North Dakota, and in Arkansas a moved peony may skip the next spring but bounce back the year after.
Transplanting by Peony Type
Garden peonies and tree peonies share one trait: neither likes to be disturbed, and both can stay put for many years. In Washington, that holds for both kinds.
In Washington, garden and tree peonies may remain undisturbed for many years.
| Peony Type | What changes | Why it matters |
|---|---|---|
| Garden peony | In Maine, divide or transplant only every 10 years or so, and often not for decades | Leaving it alone protects bloom, so dig only when the clump has a reason to move |
| Tree peony | Left in place for many years, like the garden type | Disturbance is a setback, so plan the spot carefully the first time |
| Garden and tree peonies | In Washington, both types may remain in the same location for many years | Move either type only when there is a clear reason |
For a home garden, the lesson is to choose the site carefully and treat any move as a rare event. Herbaceous clumps that have outgrown their space are the usual candidates, while tree peonies are best left alone unless the spot truly fails.
Peony Transplanting Mistakes to Avoid
Planting Too Deep
In Iowa, keep the buds 1 to 2 inches below the soil surface. In Iowa, if a plant has settled too deep, lift it in fall and reset it 1 to 2 inches below the soil surface.
Moving at the Wrong Time
Digging a plant in active growth stresses it, so wait until it is dormant. Wait for the cooler season that suits your state, then move the clump while it rests. Spring moves are possible in Connecticut once soil can be worked, though fall is preferred there.
Dividing Too Often
Divide a healthy clump only when it needs it, not simply because it is big. A divided plant can need 2 to 3 years to bloom well again in North Dakota. Leave an established peony alone until crowding or poor flowering gives you a clear reason.
When to Move Peonies in Your State
The sign to act is the end of the growing season, when foliage fades and the plant slips into rest, as the weather cools toward fall. Each state’s months are on the page for that state.
- Open your state page to see the months that suit your climate, and check it before you pick up a shovel.
- Return to your state page before moving a plant, so you can check when the local season begins.
Common Questions
Will a Moved Peony Bloom the Next Spring?
Maybe not. In Arkansas, a disturbed peony may skip the next spring, then bloom the following year once it recovers.
How Far Apart Should You Plant Peonies?
In Indiana, the advice is 3 to 4 feet apart, so each plant has room to develop.
Do You Need to Cover a Newly Planted Peony for Winter?
In Kentucky, a 4- to 6-inch layer of mulch goes over new plantings in mid- to late November, after the ground has cooled.
Sources : extension.iastate.edu