Garden hybrid

This is a garden hybrid, bred from more than one wild species, so it has no single species page of its own.

7 other cultivars

perennial

Itoh Peony 'Sweet Shelly'

Paeonia x hybrida 'Sweet Shelly'

The Story

Plant Bio

An intersectional (Itoh) peony, a hybrid between herbaceous and tree peonies. It forms a sturdy, upright mound of lush, deeply-dissected, dark green foliage that remains attractive throughout the growing season and often develops fall color.

Features large, fragrant, semi-double to double, soft shell-pink flowers with prominent raspberry-red flares at the base of the petals. Flowers are held on strong stems that do not require staking, making it an excellent landscape and cutting flower.

Uses & Benefits:

Peonies provide large, fragrant, and colorful flowers that enhance garden beauty throughout late spring and early summer.

Their robust foliage offers background greenery, and they require minimal care once established.

Attract pollinators like bees and butterflies, supporting local biodiversity.

Garden hybrid

Bred from more than one wild species, so it has no species page of its own.

Essentials

At a Glance

Plant Type

Perennial

Height

28 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Moderate

Lifespan

Decades

Native To

Asia and Europe

Toxicity

Toxic to pets if ingested

Bloom period

Late spring

In flower about 1 month of the year

Planting

How to Grow

Choose a sunny spot with well-drained soil.
Plant in fall or early spring, spacing 36 inches apart.
Water thoroughly after planting and keep soil moist.
Apply a layer of mulch to retain moisture and suppress weeds.
Support large blooms with stakes if needed.
Divide every 4–5 years in fall to rejuvenate.

Pro Tip

Plant peonies deeply, with eyes 2 inches below soil surface for best blooms.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Support heavy flower stems with stakes
Mulch to conserve moisture and prevent weeds
Fertilize in early spring with balanced fertilizer
Divide in fall if overcrowded

Don't

Avoid overwatering to prevent root rot ❌
Don’t disturb roots during blooming season
Avoid fertilizing late in the season
Don’t prune after flowering

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Plant
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Fragrant border with large pink bloomsElegant perennial in cottage gardensShowy focal point in mixed beds

Companion Plants

Lavender Salvia Delphinium HostaFerns

Multiply

Propagation Methods

Good to Know

Common Questions

Itoh Peony 'Sweet Shelly' questions

What zones can Itoh Peony 'Sweet Shelly' grow in?

Itoh Peony 'Sweet Shelly' 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 Itoh Peony 'Sweet Shelly' deer resistant?

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

When does Itoh Peony 'Sweet Shelly' bloom?

Itoh Peony 'Sweet Shelly' typically blooms in late spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Itoh Peony 'Sweet Shelly' need full sun?

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