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Ulmus parvifolia 'Zettler'

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Ulmus parvifolia 'Zettler'
SpeciesUlmus parvifolia
Cultivar'Zettler' = Heritage
OriginUS

Ulmus parvifolia 'Zettler' (selling name Heritage)[1] is a Chinese Elm cultivar that is one of three[clarification needed] recent[timeframe?] (< 2006) American introductions selected for their cold hardiness (USA zone 4 tolerant).

Description

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Heritage has a strong, upright habit and excellent branching structure, bearing deep green glossy foliage that turns to an attractive autumn colour in some years.

Pests and diseases

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The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[2]

Cultivation

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Heritage was selected from over 20,000 seedlings in 1975, and subsequently proved to be one of the hardiest Chinese or Lacebark Elms available in the United States, surviving −33 °C (−27 °F) in Illinois during the winter of 1989 without sustaining any damage whatsoever. Heritage is not known to have been introduced to Europe or Australasia.

Accessions

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None known.

Nurseries

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North America

References

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  1. ^ "Elms". Archived from the original on 2006-11-14. Retrieved 2007-02-01.
  2. ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.