Itoh Peony (Intersectional Peony)

Itoh Peonies, also known as intersectional peonies, are hybrids between herbaceous peonies (Paeonia lactiflora) and tree peonies (Paeonia suffruticosa). They combine the massive, vibrant blooms and sturdy stems of tree peonies with the hardiness and foliage dieback of herbaceous types. Their multi-layered, dinner-plate-sized flowers come in stunning shades of yellow, coral, pink, red, and white, often with dramatic flares at the petal base. With a strong, shrubby form and lush green foliage that remains attractive through fall, Itoh peonies offer an extended blooming season and remarkable resilience.

Category

Sun Needs:

  • Full sun to part shade (Full sun encourages best blooming; some shade helps flowers last longer)

Bloom Time:

  • Late spring to early summer (Typically bloom after tree peonies and before or with herbaceous peonies)
Size:

Height: 2 to 3 feet tall
Width: 2 to 4 feet wide

Attributes:
  • Large, long-lasting blooms on sturdy, upright stems
  • No need for staking due to strong stems
  • Extended bloom time – blooms last longer than traditional peonies
  • Lush, deeply cut foliage with excellent fall color
  • Cold hardy (Zones 4–9)
  • Deer and rabbit resistant
  • Low maintenance once established
  • Great cut flowers
Companion:
  • Salvia – upright spikes contrast well with rounded peony blooms
  • Catmint (Nepeta) – softens the base of the plant and attracts pollinators
  • Allium – provides architectural interest and blooms around the same time
  • Lamb’s Ear (Stachys) – soft, silver foliage complements peony greenery
  • Lady’s Mantle (Alchemilla mollis) – chartreuse blooms and foliage contrast beautifully
  • Iris – similar bloom timing with vertical interest
  • Bleeding Heart (Dicentra) – pairs well for early garden interest
  • Hosta – adds foliage interest and thrives in partial shade
  • Brunnera – heart-shaped, textured leaves for the shade edge
  • Columbine (Aquilegia) – dainty flowers before peonies bloom

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