''Ulmus parvifolia'' 'Zettler (selling name ) is a

Chinese Elm ''Ulmus parvifolia'', commonly known as the Chinese elm or lacebark elm, is a species native to eastern Asia, including China, India, Japan, Korea, and Vietnam.Fu, L., Xin, Y. & Whittemore, A. (2002)Ulmaceae in Wu, Z. & Raven, P. (eds) ''Flora of ...

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture, ...

that is one of three recent (< 2006) American introductions selected for their cold hardiness (USA zone 4 tolerant).

Description

has a strong, upright habit and excellent branching structure, bearing deep green glossy foliage that turns to an attractive autumn colour in some years.

Pests and diseases

The species and its cultivars are highly resistant, but not immune, to

Dutch elm disease Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into Americas, America ...

, and unaffected by the Elm Leaf Beetle ''

Xanthogaleruca luteola ''Xanthogaleruca luteola'', commonly known as the elm-leaf beetle, is a beetle species in the family Chrysomelidae that is native to Europe but invasive in other parts of the world.http://cisr.ucr.edu/elm_leaf_beetle.html - Center for Invasive Sp ...

''.

Cultivation

was selected from over 20,000 seedlings in 1975, and subsequently proved to be one of the hardiest Chinese or Lacebark Elms available in the United States, surviving in

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...

during the winter of 1989 without sustaining any damage whatsoever. is not known to have been introduced to Europe or Australasia.

Accessions

None known.

Nurseries

;North America *North American Plant

Lafayette, Oregon, Lafayette,

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

, US.

References

Chinese elm cultivar Ulmus articles missing images Ulmus {{Ulmaceae-stub