Flower

Peony

Paeonia lactiflora · Paeoniaceae

Peonies are long-lived perennials with big, fragrant flowers in late spring. Planted well, a clump can bloom for decades.

TypeFlower
Life cyclePerennial
SunFull sun to Part shade
WaterMedium
USDA zones3 to 8
Size1 to 3 feet tall and wide
PetsToxic
EdibleNo

Facts checked 26 Oct 2026 against the sources at the end of this page.

Pale pink double peony flower among dark green leaves
Photo: Refriedbeans52, CC0, via Wikimedia Commons. All credits.

Peony at a glance

Botanical namePaeonia lactiflora
FamilyPaeoniaceae
Other namesgarden peony, Chinese peony
Plant typeFlower; herbaceous perennial
Size1 to 3 feet tall and wide
LightFull sun (6 or more hours of direct sun); Part shade (2 to 6 hours of sun)
WaterWater in dry spells, especially in the first year.
SoilWell-drained, fertile soil.
USDA hardiness zonesHardy in zones 3 to 8. They need winter cold to flower well.
USDA PLANTS symbolPALA27

When to plant peony

Plant bare roots in fall.

When to plantFall, a few weeks before the ground freezes
Blooms or harvestThe following spring or summer

How to grow peony

  1. Choose a sunny spot with good air flow; peonies dislike being moved.
  2. Plant the root with its buds (eyes) no more than about 2 inches below the soil surface; deeper planting is a common reason for no flowers.
  3. Water well after planting.
  4. Add hoops or supports in spring for heavy-flowered types.
  5. Cut stems to the ground in fall.

Water and soil

Water: Water in dry spells, especially in the first year.

Soil: Well-drained, fertile soil.

Light: Full sun (6 or more hours of direct sun); Part shade (2 to 6 hours of sun).

Common problems

No flowers
Often from planting too deep, too much shade, or a recent move.
Botrytis blight
Buds turn brown and fail in wet weather. Clean up stems in fall and improve air flow.
Ants on buds
Ants feed on the sugary buds and do no harm.

Is peony safe for cats and dogs?

Cats (ASPCA)
Toxic
Dogs (ASPCA)
Toxic

The ASPCA lists Peony (Paeonis officinalis) as toxic to cats and toxic to dogs. Signs it lists include: vomiting, diarrhea, depression. ASPCA entry.

If a pet chews a plant and you are worried, call your vet or the ASPCA Animal Poison Control Center (888-426-4435; a fee may apply). For people, call Poison Help at 1-800-222-1222. In an emergency, call 911.

Can you eat peony?

Not edible.

Peony questions

Are peonies toxic to cats and dogs?

Yes. The ASPCA lists peony as toxic to cats and dogs; it can cause vomiting and diarrhea.

Why is my peony not blooming?

The most common causes are planting too deep, too much shade, or a recent move. Peonies may take a couple of years to bloom after planting.

Do I need to remove ants from peonies?

No. Ants visit the buds for their sugary coating and do not harm the plant.

Sources

Written in our own words from the sources above. See our editorial policy. Spotted a mistake? Tell us.

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