Ulmus laevis 'Helena'

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Ulmus laevis 'Helena'
SpeciesUlmus laevis
Cultivar'Helena'
OriginEurope

The European White Elm cultivar Ulmus laevis 'Helena' is a Dutch introduction in commerce circa 2010 at the Boomkwekerij s'Herenland at Randwijk (PBR applied for: EU 20142249).[1] The cultivar was cloned from a tree planted as one of a line of 17 White Elms at Eibergen circa 1900, which developed a straight central leader.

The 17 U. laevis at Eibergen

Description

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The tree is described as having upright, uniform, growth, producing yellow leaves in autumn. At age 100, 'Helena' should be approximately 22 m high, with a crown diameter of about 12 m.[1]

Cultivation

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'Helena' is judged 'sustainable and durable in public parks',[1] but has not been planted beyond the Netherlands (2016). The cultivar was planted among the line of 140 elms on the ‘s-Gravelandsevaartweg, Loosdrecht,[2][3] part of Wijdemeren City Council's elm collection, assembled since 2003 by tree manager Martin Tijdgat and his colleagues.[4][5]

Accessions

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None known

Nurseries

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Europe

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  • The Tree Centre, Opheusden, Netherlands
  • Van Den Berk (UK) Ltd., [1], London, UK

References

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  1. ^ a b c Ulmus laevis 'Helena'
  2. ^ Hanneke Tax, 'Martin Tijdgat, bomenman van de gemeente Wijdemeren en iepenexpert', 25 May 2022; boomzorg.nl Contains north to south names-list.
  3. ^ 'Helena', Draaibrug, ‘s-Gravelandsevaartweg, Loosdrecht - Google Maps, October 2024, access date: 15 December 2025
  4. ^ M. Tijdgat, 'Ulmus – Gebruikswaarde- en sortimentsonderzoek in de praktijk', Dendroflora 56, 2020. p.71; edepot.wur.nl
  5. ^ Hanneke Tax, 'Iepenallee 's-Gravelandsevaartweg', 1 May 2023, boomzorg.nl


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