Species

Paeonia suffruticosaTree Peony

5 other cultivars

perennial

Tree Peony 'Kirinmaru'

Paeonia suffruticosa 'Kirinmaru'

The Story

Plant Bio

This deciduous shrub is noted for its large, fragrant, double flowers that are pink in color and have a lovely fragrance.

Kirinmaru is particularly valued for its exceptionally large flowers and stunning appearance, making it a striking choice in the garden.

Uses & Benefits:

Kirinmaru peony offers stunning, fragrant blooms that add elegance to any garden setting.

Its foliage provides a lush backdrop and natural privacy screen in landscape designs.

Supports pollinators like bees and butterflies, enhancing garden biodiversity.

SpeciesPaeonia suffruticosaTree Peony

Essentials

At a Glance

Plant Type

Perennial

Height

48 inches

Width

48 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Moderate

Lifespan

Decades with proper care

Native To

China (cultivated hybrid)

Toxicity

Mildly toxic to pets if ingested

Bloom period

Late spring – Early summer

In flower about 2 months of the year

Planting

How to Grow

Tuck well-drained soil around roots in early spring.
Water regularly to keep soil moist but not waterlogged.
Mist cuttings in a humid environment for propagation.
Apply a balanced fertilizer in early spring and mid-summer.
Mulch around base to retain moisture and suppress weeds.
Prune after flowering to shape and remove dead wood.

Pro Tip

Plant in full sun with well-drained soil for best flowering results.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells 🌱
Prune after flowering to encourage bushiness
Apply mulch to conserve soil moisture
Use organic compost annually

Don't

Avoid overwatering, which can cause root rot ❌
Don’t prune in late fall or winter
Refrain from fertilizing with high nitrogen in late season
Never plant in poorly drained soil

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Mulch
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Elegant flowering shrub for mixed bordersFragrant specimen for garden focal pointDeciduous hedge with striking blooms

Companion Plants

Roses Lavender Peonies Hostas Ferns

Multiply

Propagation Methods

Good to Know

Common Questions

Tree Peony 'Kirinmaru' questions

What zones can Tree Peony 'Kirinmaru' grow in?

Tree Peony 'Kirinmaru' is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Tree Peony 'Kirinmaru' deer resistant?

Yes — Tree Peony 'Kirinmaru' is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Tree Peony 'Kirinmaru' bloom?

Tree Peony 'Kirinmaru' 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 Tree Peony 'Kirinmaru' need full sun?

Tree Peony 'Kirinmaru' does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.