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Description
Ulmus Davidiana, also known as David Elm, is a deciduous tree native to East Asia, particularly China, Japan, and Korea. It can grow up to 30 meters tall with a trunk diameter of up to 1 meter. The leaves of this tree are dark green, glossy, and ovate-shaped, with a serrated margin. The flowers are small and inconspicuous, appearing in early spring before the leaves. The fruit of the tree is a samara with a circular wing and a notch at the top, which helps it to spread by wind.
Taxonomic Information
| Domain | Kingdom | Phylum | Class | Order | Family | Genus |
|---|---|---|---|---|---|---|
| Eukaryota | Plantae | Spermatophyta | Angiospermae | Rosales | Ulmaceae | Ulmus |
Appearance
The bark of Ulmus Davidiana is dark grey-brown and deeply furrowed, with ridges that form a diamond pattern. The wood is hard and durable, making it useful for furniture and construction. The tree has a vase-shaped canopy that provides good shade. In autumn, the leaves turn yellow before falling off.
Care Guide
Ulmus Davidiana is a hardy tree that can tolerate a range of growing conditions. Here are some tips for caring for this tree:
- Water: The tree prefers well-drained soil but can tolerate occasional flooding. Water regularly during the growing season and reduce watering in winter.
- Fertilization: Fertilize the tree once a year in spring with a balanced fertilizer.
- Soil: The tree can grow in any soil type, but prefers loamy soil with a pH of 6-7.
- Sunlight: The tree prefers full sun but can tolerate partial shade.
- Hardiness Zones: Ulmus Davidiana is hardy in USDA zones 4-9.
Common Pests & Diseases
Ulmus Davidiana is susceptible to a few pests and diseases, including:
- Elm leaf beetle: This pest can defoliate the tree and cause significant damage. Use insecticidal sprays or introduce natural predators to control the beetle.
- Dutch elm disease: This fungal disease can kill the tree. Prune infected branches and use fungicidal sprays to control the disease.
- Verticillium wilt: This fungal disease can cause wilting and yellowing of the leaves. There is no cure, so infected trees should be removed to prevent the disease from spreading.
Habitat
Ulmus Davidiana is commonly found in forests, along riverbanks, and in urban areas as a shade tree. It is also planted for erosion control and as an ornamental tree in gardens and parks.
Question and Answer
Q: Is Ulmus Davidiana a fast-growing tree?
A: No, it is a slow-growing tree that can take several years to reach maturity.
Q: Can Ulmus Davidiana be grown in containers?
A: It is not recommended to grow this tree in containers as it requires a large amount of space for root development.
Q: Is Ulmus Davidiana a good shade tree?
A: Yes, it has a vase-shaped canopy that provides good shade.
Q: Can Ulmus Davidiana be propagated from cuttings?
A: Yes, cuttings taken in early summer can be propagated into new trees.
Related Plants
- Ulmus Americana
- Ulmus Campestris
- Ulmus Glabra
- Ulmus Parvifolia
References
- “Ulmus davidiana Nakai.” Plants of the World Online, Kew Science. Accessed 24 May 2021. www.plantsoftheworldonline.org/.
- “David Elm.” Missouri Botanical Garden. Accessed 24 May 2021. www.missouribotanicalgarden.org/.
- “Ulmus davidiana.” Wikipedia. Accessed 24 May 2021. en.wikipedia.org/.
