Bartzella Itoh Peony
Paeonia x hybrida 'Bartzella'
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Moderate
Lifespan
50+ years
Native To
Cultivated hybrid
Toxicity
Toxic to dogs, cats, and horses
The Story
Plant Bio
Paeonia 'Bartzella' is an Itoh (intersectional) peony, a hybrid between herbaceous and tree peonies, known for its large, fragrant, semi-double to double, butter-yellow flowers with a touch of red at the center. A standout Itoh peony prized for its enormous, fragrant yellow blooms on strong stems that do not require staking. It has a longer blooming season than most herbaceous peonies.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Select a well-drained, fertile soil with neutral to slightly acidic pH.
- Plant Bartzella peonies in early spring or fall, spacing 3-4 feet apart.
- Tuck roots 1-2 inches below soil surface for proper depth.
- Water thoroughly after planting to settle soil around roots.
- Mulch with organic matter to retain moisture and suppress weeds.
- Stake tall stems if necessary to prevent flopping.
Pro Tip
Plant in a sunny location with good air circulation to promote healthy blooms.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 💧
- Apply a balanced fertilizer in early spring 🌱
- Remove spent flowers to encourage reblooming
- Mulch annually to conserve moisture and regulate soil temperature
Don't
- Avoid heavy, waterlogged soils ❌
- Don’t plant too deep; roots should be just below the surface ❌
- Refrain from fertilizing late in the season ❌
- Avoid disturbing roots during the growing season ❌
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Plant | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Bartzella Itoh Peony questions
What zones can Bartzella Itoh Peony grow in?
Bartzella Itoh Peony is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Bartzella Itoh Peony deer resistant?
Yes — Bartzella Itoh Peony is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Bartzella Itoh Peony bloom?
Bartzella Itoh Peony typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Bartzella Itoh Peony need full sun?
Bartzella Itoh Peony does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Paeonia to compare
Sarah Bernhardt Peony
Paeonia lactiflora 'Sarah Bernhardt'
Tree Peony 'Duchesse de Lorraine'
Paeonia x suffruticosa 'Duchesse de Lorraine'
Tibetan Tree Peony
Paeonia deltoidea
Daydream Peony
Paeonia lactiflora 'Daydream'
Festiva Maxima Peony Chinese Peony
Paeonia lactiflora 'Festiva Maxima'
Rozella Peony
Paeonia officinalis 'Rozella'
Keep exploring
Explore the genus
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Grow Bartzella Itoh Peony with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
