The

Japanese Elm Japanese elm is a common name for several plants and may refer to: * ''Ulmus davidiana'' var. ''japonica'' *''Zelkova serrata ''Zelkova serrata'' (Japanese zelkova, Japanese elm or keyaki or keaki; ja, 欅 (ケヤキ) keyaki /槻 (ツキ) tsu ...

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, ...

''Ulmus davidiana'' var. ''japonica'' 'Mitsui Centennial' is a cold-resistant selection raised at the Morden Experimental Station,

Manitoba Manitoba ( ) is a Provinces and territories of Canada, province of Canada at the Centre of Canada, longitudinal centre of the country. It is Canada's Population of Canada by province and territory, fifth-most populous province, with a population o ...

, Canada, in the 1970s, originally for use in the prairie regions. It was named to mark the centenary in 1980 of the London branch of Mitsui & Co., being one of a batch of Asiatic elms, some sourced from Canada (including 'Jacan'), donated to the UK in that year by the company.

Description

Similar in appearance to 'Jacan'. The species does not sucker from roots.

Pests and diseases

The tree is more resistant 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 ...

than 'Jacan', and is also resistant to elm leaf beetle '' Xanthogaleruca luteola'

Cultivation

Largely restricted to Canada, 'Mitsui Centennial' is represented in

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

by a specimen at the

Sir Harold Hillier Gardens The Sir Harold Hillier Gardens is an arboretum comprising 72 hectares (180 acres) accommodating over 42,000 trees and shrubs in about 12,000 taxa, notably a collection of oaks, camellia, magnolia and rhododendron. The Gardens are located nor ...

Hampshire Hampshire (, ; abbreviated to Hants) is a ceremonial county, ceremonial and non-metropolitan county, non-metropolitan counties of England, county in western South East England on the coast of the English Channel. Home to two major English citi ...

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

, where it has grown strongly in a sheltered location on

London Clay The London Clay Formation is a marine geological formation of Ypresian (early Eocene Epoch, c. 56–49 million years ago) age which crops out in the southeast of England. The London Clay is well known for its fossil content. The fossils from t ...

.Sir Harold Hillier Gardens, Ampfield, UK, (2015). ''Ulmus database''
/ref> A grove of 'Mitsui Centennial' was planted in 1980 near the Parsee Fountain on Broadwalk,

Regents Park Regent's Park (officially The Regent's Park) is one of the Royal Parks of London. It occupies of high ground in north-west Inner London, administratively split between the City of Westminster and the Borough of Camden (and historically betwe ...

, London.Mike Fitt, 'A History of Elms in London', 2024; elms4london.org
/ref>

Accessions

;North America *

Dominion Arboretum The Dominion Arboretum (french: Arboretum du Dominion) is an arboretum part of the Central Experimental Farm of Agriculture and Agri-Food Canada in Ottawa, Ontario, Canada. Originally begun in 1889, the Arboretum covers about of rolling land ...

, Ottawa, Ontario, Canada. No acc. details. ;Europe *

Grange Farm Arboretum The Grange Farm Arboretum is a small private arboretum comprising 3 hectares accommodating over 800 trees, mostly native and ornamental species or cultivars, notably oaks, ashes, walnuts and elms, growing on a calcareous loam.Ostler, J. (2009) ' ...

, Sutton St James, Spalding,

Lincolnshire Lincolnshire (abbreviated Lincs.) is a county in the East Midlands of England, with a long coastline on the North Sea to the east. It borders Norfolk to the south-east, Cambridgeshire to the south, Rutland to the south-west, Leicestershire ...

, UK. Acc. no. not known. *

Romsey Romsey ( ) is a historic market town in the county of Hampshire, England. Romsey was home to the 17th-century philosopher and economist William Petty and the 19th-century British prime minister, Lord Palmerston, whose statue has stood in the t ...

, UK. Acc. no. 1981.0134

References

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