The Chinese Elm Ulmus parvifolia Jacq. cultivar 'D. B. Cole
' was listed in the Arborvillage Farm Nursery (ceased trading in 2006) Holt
, Catalogue of Fall 1991 - Spring 1992, p. 21.
'D. B. Cole' is described as smaller growing with a dense head.
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
The tree is not known to be in cultivation beyond North America.