Japanese Wood Poppy
Glaucidium palmatum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Shrub
Height
24 inches
Width
24 inches
Light
Partial Sun, Shade
Zones
5, 6, 7, 8
Water
Moist
Humidity
High
Lifespan
Perennial
Native To
Japan
Toxicity
Non-toxic
The Story
Plant Bio
A rare woodland perennial, Glaucidium palmatum features large, handsome, maple-like leaves and bears large, solitary, poppy-like flowers in shades of lilac, pink, purple or white in late spring. This species is prized for its exquisite flowers and bold foliage, making it a sought-after specimen for shaded, humus-rich woodland gardens. It forms a slowly spreading clump.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Choose a shaded location with well-draining, moist soil.
- Plant in early spring or fall, spacing plants 18-24 inches apart.
- Tuck roots into soil and water thoroughly to settle.
- Mulch around base to retain moisture and suppress weeds.
- Mist leaves regularly during dry periods for best foliage color.
- Fertilize lightly in early spring with a balanced, acid-loving plant fertilizer.
Pro Tip
Keep soil consistently moist for vibrant foliage and healthy growth.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Mulch to retain moisture and regulate temperature
- Fertilize in spring with an acid-loving fertilizer
Don't
- Avoid overexposing to direct sunlight ❌
- Do not let soil dry out completely
- Refrain from heavy pruning in late fall
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch |
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
Japanese Wood Poppy questions
What zones can Japanese Wood Poppy grow in?
Japanese Wood Poppy is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Japanese Wood Poppy deer resistant?
Yes — Japanese Wood Poppy is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Japanese Wood Poppy bloom?
Japanese Wood Poppy typically blooms in late spring to early summer through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Japanese Wood Poppy need full sun?
Japanese Wood Poppy does best in part shade.
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Grow Japanese Wood Poppy 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.
