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Ulmus minor 'Silvery Gem'

From Wikipedia, the free encyclopedia
Elm cultivar
Ulmus minor 'Silvery Gem'
SpeciesUlmus minor
Cultivar'Silvery Gem'
OriginEurope

Thefield elmcultivarUlmus minor 'Silvery Gem' is an ornamental clone raised, asUlmus carpinifolia 'Silvery Gem', before 1965 by P. G. Zwijnenburg of Zwijnenburg nurseries,Boskoop, The Netherlands.[1]

Description

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A moderately tall growing shrub, reaching about 3–4 m (9.8–13.1 ft) in 10 years and with rather dense, twiggy branches bearing ovate leaves of a grey-green or silvery colour, especially in the spring, with irregular but conspicuous creamy-white margins.[2] The colouring and variegation are most striking in spring, fading somewhat in summer.[1][3][4]

Pests and diseases

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'Silvery Gem' is not known to be resistant toDutch elm disease,[citation needed] but the low height of the tree may ensure that it avoidscolonization byScolytus bark beetles and thus remain free of infection. It has been noted that shrub-elms are usually less prone to infection.[5]

Cultivation

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The clone won a Golden Medal in The Netherlands in the mid-1960s.[1] It remains available from several nurseries in Europe (see below).

Synonymy

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  • Ulmus procera 'Silvery Gem'.[3]

Nurseries

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Europe

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References

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  1. ^abcGrogtendorst, Herman J. (1971)."Tentoonstelling Flora Nova '70".Dendroflora.8: 73. Retrieved24 January 2018.
  2. ^"Herbarium specimen - WAG.1878119".Botany catalogues.Naturalis Biodiversity Center. Herbarium specimen labelledU. carpinifolia 'Silvery Gem' (Boskoop, 1966)
  3. ^abHilliers' Manual of Trees & Shrubs. (1977). David & Charles, Newton Abbot, UK.
  4. ^Photograph and description ofUlmus minor 'Silvery Gem': Ronald Houtman,Variegated trees and shrubs: the illustrated encyclopedia (Portland, Oregon: Timber Press, in association with the Royal Boskoop Horticultural Society), p.285
  5. ^Rafaël Govaerts, Kris Michielsen and Eike Jablonski, 'Untraced weeping broadleaf cultivars: an overview', dendrology.lu

External links

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Species, varieties and subspecies
Disputed species, varieties and subspecies
Hybrids
Speciescultivars
American elm
Cedar elm
Chinese elm
European white elm
Field elm
Japanese elm
Siberian elm
Winged elm
Wych elm
Hybridcultivars
Dutch elm
U. ×intermedia
Unconfirmed derivation cultivars
Fossil elms
Retrieved from "https://en.wikipedia.org/w/index.php?title=Ulmus_minor_%27Silvery_Gem%27&oldid=1302606616"
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