Ulmus davidiana var. japonica 'Jacan'

Infobox Cultivar | name = "Ulmus davidiana" var. "japonica"
cultivar = 'Jacan'


image_caption = 'Jacan', Sir Harold Hillier Gardens. Photo: Ronnie Nijboer, Bonte Hoek kwekerijen
origin = CanadaThe Japanese Elm "Ulmus davidiana" var. "japonica" cultivar 'Jacan' is a cold-resistant selection from Canada. The tree was raised by the Morden Research Station, Morden, Manitoba in the 1980s [http://fletcher.ces.state.nc.us/programs/nursery/metria/metria11/warren/elm.htm] .

Description

'Jacan' develops an attractive rounded crown form typical of the species; the foliage turns a dep red in autumn.

Pests and diseases

The tree is moderately resistant to Dutch elm disease, and elm leaf beetle "Xanthogaleruca luteola" [http://commons.wikimedia.org/wiki/Xanthogaleruca_luteola] Burdekin, D. A. & Rushforth, K. D. (Revised by Webber J. F. 1996). Elms resistant to Dutch elm disease. "Arboricultural Research Note "2/96. Arboricultural Advisory and Information Service, Alice Holt, Farnham, UK.] .

Cultivation

'Jacan' was introduced to the UK from Canada in the early 1980s, but has not been widely planted on either side of the Atlantic. It is not known to have been introduced to the USA or Australasia.

Accessions

;North AmericaNone known.;Europe
*Brighton & Hove City Council, UK, NCCPG National Elm Collection, UK champion: Sussex University campus, 15 m high, 31 cm d.b.h. in 2002, (listed as "U. japonica" 'Jacan') Johnson, Owen (ed.) (2003). "Champion Trees of Britain & Ireland". Whittet Press, ISBN 9781873580615.] .
*Sir Harold Hillier Gardens, UK, acc. nos. 1981.0133, 1982.4002

Nurseries

;North America
*Patmore Nursery [http://patmorenursery.com] , Brandon, Manitoba. ;EuropeNone known.

References