Dr. Alexander Flemming

Bartzella Peony is a hybrid Itoh peony, celebrated for its sunny yellow, semi- to fully double blooms with a soft citrus fragrance. Each bloom is generously sized and may feature faint reddish flares near the center, adding a touch of depth and interest.

This vigorous and long-lasting variety blooms in late spring to early summer, often producing 20–30 blooms per mature plant.  Bartzella combines the strong stems and lush foliage of tree peonies with the die-back-and-return habit of herbaceous peonies.

 Bare roots tubers are sold in 3-5 eyes.

• Color: Bright lemon-yellow with occasional soft red flares at the petal base

• Size:

  • Plant Height: ~30–36 inches (75–90 cm)

  • Bloom Diameter: Large, approx. 6–9 inches (15–23 cm)

• Fragrance: Light citrus-like scent

• Blooming Season: Late spring to early summer (often May to June)

• Foliage: Deep green, attractive foliage that remains lush into fall

• Stem Strength: Very strong – blooms are held upright without staking

• Bloom Quantity: High – mature plants can produce 20–30 blooms

• Ideal Use: Focal point in perennial beds, cut flower gardens, sunny borders

• Growing Conditions:

  • Full sun to light shade

  • Well-drained, fertile soil

  • Hardy in USDA Zones 4–9