perennial

Thunberg's fritillary

Fritillaria thunbergii

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Essentials

At a Glance

Plant Type

Perennial

Height

18 inches

Width

8 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

China, Japan

Toxicity

Toxic if ingested

The Story

Plant Bio

Fritillaria thunbergii is a bulbous perennial with slender, arching stems and whorled, lance-shaped leaves. It produces bell-shaped, nodding flowers with a distinctive checkered pattern in shades of brown and purple. Distinctive for the coiled, tendril-like tips on its upper leaves, which help the plant support itself. Valued for its unique checkered flowers in early spring and its ability to naturalize in woodland settings.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides striking early spring blooms with elegant nodding flowers that add vertical interest.

Bulbs are hardy and require minimal care once established.

Attracts pollinators like bees and butterflies, supporting local ecosystems.

Marketplace

Where to Buy

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Planting

How to Grow

Tuck bulbs 4-6 inches deep in well-draining soil
Mist soil lightly after planting to settle
Water regularly during active growth
Mulch to retain moisture and regulate temperature
Divide bulbs every 3-4 years in late summer
Remove spent flowers to encourage new growth

Pro Tip

Plant in well-drained soil with partial sun for best bloom

Keep It Thriving

Care Guide

Do

Tuck bulbs in well-draining soil 🌱
Water during dry spells
Mulch to protect roots

Don't

Avoid overwatering to prevent rot ❌
Don’t plant in heavy clay soil without amendment
Refrain from disturbing bulbs during dormancy

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Pest Check
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Elegant spring borderShade garden accent

Companion Plants

Hostas Ferns Spring ephemerals

Multiply

Propagation Methods

Good to Know

Common Questions

Thunberg's fritillary questions

What zones can Thunberg's fritillary grow in?

Thunberg's fritillary 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 Thunberg's fritillary deer resistant?

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

When does Thunberg's fritillary bloom?

Thunberg's fritillary typically blooms in early spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Thunberg's fritillary need full sun?

Thunberg's fritillary does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.