bulb corm tuber

Japanese Dogtooth Violet

Erythronium japonicum

The Story

Plant Bio

Erythronium japonicum, commonly known as the Japanese trout lily or Asian Fawn Lily, features charming purple flowers that nod gracefully above mottled foliage in early spring.

This species is valued for its stunning flowers and attractive mottled leaves, and it is often used in woodland gardens.

Uses & Benefits:

Ornamental UsesErythronium japonicum offers delicate, nodding flowers that brighten shaded woodland gardens with early spring color.
Practical UsesProvides ground cover and naturalizes in shady areas, reducing maintenance.
Ecological BenefitsSupports native pollinators and enhances woodland biodiversity.

Essentials

At a Glance

Plant Type

Bulb Corm Tuber

Height

6 inches

Width

4 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7

Water

Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Japan, Korea, China, Russian Far East

Toxicity

Non-toxic to humans and pets

Bloom period

Early spring – Mid-spring

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 2 months of the year

Planting

How to Grow

  1. Tuck bulbs 3 inches deep in well-drained soil in fall.
  2. Water thoroughly after planting to settle soil.
  3. Mist foliage regularly during growing season for best blooms.
  4. Mulch lightly to retain moisture and regulate temperature.
  5. Divide clumps every 3-4 years in early spring or fall.
  6. Remove spent flowers to encourage healthy growth.

Pro Tip

Plant in partial shade with rich, well-drained soil for best results.

Keep It Thriving

Care Guide

Do

  • Water during dry spells 🌱
  • Mulch annually to conserve moisture
  • Remove dead leaves to prevent disease

Don't

  • Avoid overwatering to prevent bulb rot ❌
  • Don’t expose bulbs to standing water
  • Skip fertilizing in late fall

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Divide
Mulch
Plant

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Woodland garden borderShaded rock garden accentNative plant meadow

Companion Plants

TrilliumHostaFerns Bleeding Heart Solomon's Seal

Multiply

Propagation Methods

Good to Know

Common Questions

Japanese Dogtooth Violet questions

What zones can Japanese Dogtooth Violet grow in?

Japanese Dogtooth Violet is hardy in USDA Zones 4–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Japanese Dogtooth Violet deer resistant?

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

When does Japanese Dogtooth Violet bloom?

Japanese Dogtooth Violet typically blooms in early spring through mid-spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Japanese Dogtooth Violet need full sun?

Japanese Dogtooth Violet does best in part shade.

Keep exploring

Grow Japanese Dogtooth Violet 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.