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Description
Glaucidium palmatum, commonly known as the Japanese Wood Poppy, is a flowering plant native to Japan. It is a member of the poppy family, Papaveraceae, and is a popular ornamental plant for gardens and landscapes. The plant produces large, yellow, cup-shaped flowers with four petals that bloom in late spring to early summer. The flowers stand above the plant’s lush foliage, which is deeply lobed and resembles a palm.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Ranunculales |
| Family | Papaveraceae |
| Genus | Glaucidium |
Appearance
The Glaucidium palmatum plant grows up to 2-3 feet in height and 1-2 feet in width. The leaves are green and lobed, resembling a palm, and can reach up to 8 inches in length. The plant produces large, yellow, cup-shaped flowers with four petals that bloom in late spring to early summer. The flowers stand above the foliage on tall stems that can reach up to 2 feet in height.
Care Guide
Glaucidium palmatum prefers partial shade to full shade and moist, well-draining soil. Water the plant regularly, especially during dry spells, and fertilize once a month during the growing season with a balanced fertilizer. The plant is hardy in USDA hardiness zones 5-8. It is important to keep the soil moist but not waterlogged to prevent root rot. Mulching around the plant can help retain soil moisture and keep weeds at bay.
Common Pests & Diseases
Glaucidium palmatum is generally resistant to pests and diseases, but it can be susceptible to root rot if the soil is too wet. Aphids and slugs can also be a problem, but they can be controlled with natural or chemical remedies.
Habitat
Glaucidium palmatum is native to Japan and can be found growing in moist, shady areas in forests and along stream banks. It prefers cool, damp environments and thrives in woodland gardens and shaded borders.
Question and Answer
Q: How often should I water my Glaucidium palmatum plant?
A: Water your plant regularly, especially during dry spells. Keep the soil moist but not waterlogged to prevent root rot.
Q: What fertilizer should I use for my Glaucidium palmatum plant?
A: Use a balanced fertilizer and fertilize once a month during the growing season.
Q: What is the hardiness zone for Glaucidium palmatum?
A: The plant is hardy in USDA hardiness zones 5-8.
Q: What is the common name for Glaucidium palmatum?
A: The plant is commonly known as the Japanese Wood Poppy.
Related Plants
- Glaucidium japonicum
- Glaucidium palmatum var. leiocarpum
- Glaucidium palmatum var. parviflorum
- Glaucidium palmatum subsp. yoshinagae
References
- “Glaucidium palmatum.” Missouri Botanical Garden. Accessed September 13, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c730.
- “Glaucidium palmatum.” Plant Database. Accessed September 13, 2021. https://pfaf.org/user/Plant.aspx?LatinName=Glaucidium+palmatum.
- “Japanese Wood Poppy.” Royal Horticultural Society. Accessed September 13, 2021. https://www.rhs.org.uk/plants/33652/glaucidium-palmatum/details.
