General Plant Information (Edit)
| Plant Habit: |
Tree
|
| Sun Requirements: |
Full Sun
|
| Water Preferences: |
Mesic
|
| Soil pH Preferences: |
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
|
| Minimum cold hardiness: |
Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
|
| Maximum recommended zone: |
Zone 9b
|
| Plant Height: |
40 to 80 feet |
| Plant Spread: |
20 to 40 feet |
| Leaves: |
Good fall color
|
| Flowers: |
Inconspicuous
|
| Bloom Size: |
Under 1"
|
| Flower Time: |
Late winter or early spring
|
| Suitable Locations: |
Street Tree
|
| Uses: |
Shade Tree
|
| Resistances: |
Pollution
Drought tolerant
|
| Pollinators: |
Wind
|
| Miscellaneous: |
Monoecious
|
- Accepted: Ulmus davidiana var. japonica
- Synonym: Ulmus wilsoniana
- Synonym: Ulmus japonica
Posted by
ILPARW (southeast Pennsylvania - Zone 6b) on Oct 24, 2020 7:57 AM concerning plant:
This Japanese David Elm is native to Japan. I am not sure if they are including it into parts of the east Asian continent or not. Its leaves are large for an east Asian elm of being about 3 to 4 inches long by 1.5 to 2 inches wide, and it has 16 or less pairs of veins on the leaves. Selections of it that grew taller with an upright, arching form were used to bring forth hybrid elms that resemble the wonderful American Elm that was mostly lost by the Dutch Elm Disease. From the perhaps one out of a thousand American Elms that did have good resistance to the new Asian fungus disease, cultivars of the American Elm have been selected as 'Valley Forge' and 'Princeton' to be planted once again in landscapes. There also is work to bring forth natural trees that are not cultivars to restore the American species. The only Japanese Elms being grown in North America are cultivars, not the straight species.
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