Ulmus parvifolia 'Zettler' = Heritage

Ulmus parvifolia 'Zettler'
Species	Ulmus parvifolia
Cultivar	'Zettler' = Heritage™
Origin	US

The Chinese Elm cultivar Ulmus parvifolia 'Zettler' (selling name Heritage™) is one of three recent (< 2006) American introductions selected for their cold hardiness (USA zone 4 tolerant).

Description

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

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[1]

Cultivation

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

None known.

Nurseries

North America

North American Plants , Lafayette, Oregon, US.

References

"Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.

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[1] "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.