PlantsUlmusUlmus davidiana var. japonica

Botanical names:
Ulmus davidiana var. japonica Accepted
Ulmus wilsoniana Synonym
Ulmus japonica Synonym

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

some cultivar as a young, maturing tree

Photo gallery:
Location: Devon, PennsylvaniaDate: 2008-10-30some cultivar as a young, maturing tree
By ILPARW
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Location: Devon, PennsylvaniaDate: 2008-10-30foliage of a cultivar
By ILPARW
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Comments:
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Oct 24, 2020 7:57 AM

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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Discussion Threads about this plant
Thread Title Last Reply Replies
Slippery Elm (Ulmus rubra) by jimard8 Aug 16, 2015 2:38 PM 11

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