Ulmus parvifolia 'Zettler'
Ulmus parvifolia 'Zettler is a Chinese elm cultivar cloned by Earl Cully from a tree growing near Jacksonville, Illinois, and patented in 1999. It is one of a small number of American lacebark elm introductions selected for their cold hardiness, others including 'King's Choice', 'Hallelujah', 'Glory' and 'Matthew'.Description
has a strong, upright "medium oval" habit and excellent branching structure, bearing deep green glossy foliage that turns to an attractive autumn colour in some years. The tree attains a height and width of 50 ft by 50 ft.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.Cultivation
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 in Illinois during the winter of 1989 without sustaining any damage whatsoever. is not known to have been introduced to Europe or Australasia.Accessions
None known.Nurseries
;North America