Ulmus pumila 'Dropmore'

The Siberian elm cultivar Ulmus pumila 'Dropmore' was grown from seed collected in Harbin, Manchuria, China, by F. L. Skinner, of Dropmore, Manitoba. Green reported (1964) a suggestion to merge the Siberian elm cultivars 'Harbin' and 'Manchu' with 'Dropmore', as all came from the Harbin area. In the event, 'Dropmore' appears to have superseded these earlier cultivars.

The cultivar 'Chinkota' was raised in North Dakota from 'Dropmore' seed.

Description
'Dropmore' is a fast-growing bushy form producing small leaves.

Pests and diseases
See under Ulmus pumila.

Cultivation
The tree remains in commercial cultivation in the United States. Considered cold-hardy far into Canada, it did not perform well in the hot, arid, climate of Arizona as part of the elm trials in conducted by the Northern Arizona University at Holbrook.

Accessions

 * North America
 * Dominion Arboretum, Ottawa, Ontario, Canada. No acc. details.
 * Morton Arboretum, US. Acc. no. 883–85
 * University of Wisconsin–Madison Arboretum, US. Acc. details not known
 * Europe
 * Grange Farm Arboretum, Lincolnshire, UK. Acc. no. 1273.

Nurseries

 * North America
 * Lee Nursery Inc., Fertile, Minnesota, US.
 * Lincoln Oakes, Bismarck, North Dakota, US.