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Ulmus 'Morton Glossy' Triumph

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Origin
  
USA

Ulmus 'Morton Glossy' Triumph Triumph Elm Ulmus 39Morton Glossy39

Hybrid parentage
  
'Morton' = Accolade × 'Morton Plainsman' = Vanguard

Cultivar
  
'Morton Glossy' = Triumph

Similar
  
Ulmus 'Morton' Accolade, Ulmus 'Patriot', Ulmus 'Morton Red Tip, Ulmus 'Morton Stalwart, Ulmus americana 'Valley Fo

Ulmus 'Morton Glossy' (selling name Triumph™) is a hybrid cultivar raised by the Morton Arboretum, Illinois. Originally named 'Charisma' until it was realized that name had already been registered for another plant, the tree was derived from a crossing of two other hybrid cultivars grown at the Morton: Accolade and Vanguard. Triumph was introduced to the UK in 2006 by the Frank P. Matthews nursery in Worcestershire.

Contents

Ulmus 'Morton Glossy' Triumph Triumph Elm Ulmus 39Morton Glossy39

Description

Ulmus 'Morton Glossy' Triumph httpsuploadwikimediaorgwikipediacommonsthu

Triumph has been promoted in the United States as "strong and symmetrical" in growth and habit [1]. However, its performance in the southern United States has not impressed, and it was dismissed as "ugly" by Michael Dirr, Professor of Horticulture at the University of Georgia [2], on account of its "wild" growth and splaying branches. It is similar in stature to the American Elm and has leaves that are a deep glossy green when mature, < 10 cm in length by 5 cm broad, with rough upper surface and finely toothed margins. In trials in the UK, Triumph was found to be the first elm to flush in spring, and the first to shed its leaves in the fall, usually by early October. The tree grew poorly on thin soils over clay, which became very dry in summer, but excelled on floodplain alluvium subjected to brief periods of inundation in winter.

Pests and diseases

Ulmus 'Morton Glossy' Triumph Trees from Chicagoland Grows Triumph Elm

Triumph has a resistance to Dutch elm disease, but is highly susceptible to attack by elm leaf beetle Xanthogaleruca luteola [3] [4] and Japanese beetle.

Cultivation

Ulmus 'Morton Glossy' Triumph Trees from Chicagoland Grows Triumph Elm

In commerce, Triumph is usually propagated by grafting onto an Ulmus pumila rootstock. The tree, under its original name of 'Charisma', featured in the elm trials [5] conducted by Northern Arizona University at Holbrook, eastern Arizona. Triumph is very cold-hardy; in artificial freezing tests at the arboretum the LT50 (temp. at which 50% of tissues die) was found to be - 40 °C.

Ulmus 'Morton Glossy' Triumph Trees from Chicagoland Grows Triumph Elm

The tree is currently being evaluated in the National Elm Trial[6] coordinated by Colorado State University. Triumph was briefly in commerce in the UK, where 180 trees were sold in 2006; several specimens were acquired for assessment by Butterfly Conservation in Hampshire.

Synonymy

  • 'Charisma': initial name accorded until 1995.

    • Accessions

    North America
    Ulmus 'Morton Glossy' Triumph 10 Best images about Elm on Pinterest Trees A tree and Dutch

  • Arnold Arboretum. Acc. no. 132–2002
  • Bartlett Tree Experts. Acc. nos. 2001–104, 2001–105
  • Bickelhaupt Arboretum. Acc. no. 02–038
  • Chicago Botanic Garden, Glencoe, Illinois. Planted in the Parking Lots, no other details available.
  • Dawes Arboretum [7], Newark, Ohio. 3 trees. No acc. details available.
  • Morton Arboretum. Acc. nos. 135–94, 523–99, 212–2004, 497–2004, 630–2004, 1090–2004.
  • Parker Arboretum, Parker, Colorado. No acc. details.
  • University of Idaho Arboretum. Two trees. Acc. no. 2000091
    • Europe
  • Grange Farm Arboretum, Sutton St. James, Spalding, Lincolnshire, UK. Acc. details not known.
  • Great Fontley Farm, Fareham, UK, Butterfly Conservation Elm Trials plantation, Home Field, (planted 2007).
  • Sir Harold Hillier Gardens, Romsey, Hampshire UK. Acc. no: 2007.0260
  • Royal Botanic Garden Edinburgh, UK. Acc. no. 20070379

    • Nurseries

    North America
  • Acorn Farms [8], Galena, Ohio.
  • Bailey Nurseries [9], St. Paul, Minnesota.
  • Carlton Plants, LLC [10], Dayton, Oregon.
  • Charles J. Fiore [11], Prairie View, Illinois.
  • J. Frank Schmidt & Son Co. [12], Boring, Oregon
  • Johnson's Nursery [13], Menomonee Falls, Wisconsin
  • North American Plants [14], Lafayette, Oregon
  • Sun Valley Garden Centre [15], Eden Prairie, Minnesota.

    • References

    Ulmus 'Morton Glossy' Triumph Wikipedia
    (Text) CC BY-SA


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