The Chinese Elm cultivar Ulmus parvifolia 'Drake' was marketed by the Monrovia Nursery of Azusa, California, first appearing in their 1952–1953 catalogue.[1]
Description
A small tree, to 30 or 40 ft tall, with upright, spreading branches, the broad crown developing long, overhanging branchlets when older.[2] The leaves are dark green.[1] 'Drake' is also distinguished by having a bark that begins exfoliating at a relatively young age.[3]
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.[4]
Cultivation
'Drake' became the most popular form of U. parvifolia planted in the southern and western states of the United States.[5] It is considered less suitable for planting further north.[6][7] It has been described as "a poor choice as a street tree as it tends to have a low branching canopy and needs frequent pruning".[8] In Florida it is reported prone to storm damage.[8] One specimen is known to have been introduced to Europe.
Synonymy
- Ulmus 'Brea': Keeline-Wilcox Nursery, Brea, California, Cat. Winter 1952.
Accessions
- North America
- U S National Arboretum [1][permanent dead link], Washington, D.C., United States. Acc. no. 36533
- Harry P. Leu Gardens, Orlando, Florida.[2] No accession details available.
- Europe
- Grange Farm Arboretum, Sutton St. James, Spalding, Lincolnshire, UK. One specimen, acc. no. 704.
Nurseries
North America
(Widely available)
References
- ^ a b Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.
- ^ a b Photographs of U. parvifolia 'Drake' in Harry P. Leu Gardens, Orlando, Florida; Handbuch der Ulmengewächse (Handbook of the Elm Family); ulmen-handbuch.de
- ^ U. parvifolia 'Drake', willisorchards.com
- ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
- ^ Dirr, M. A. (2002). Dirr's Trees and Shrubs for Warm Climates, Timber Press, Portland, Oregon, USA. ISBN 0-88192-525-X
- ^ Lindstrom, O. M.; Dirr, M. A. (1991). "Cold hardiness of six cultivars of Chinese elm". HortScience. 26 (3): 290–2. doi:10.21273/HORTSCI.26.3.290. INIST 5458797.
- ^ U. parvifolia 'Drake', Plant Database, University of Connecticut; plantdatabase.uconn.edu
- ^ a b Eric Schmidt, 'Street Trees for Central Florida', Happy P. Leu Gardens, Orlando, Florida
External links
- Ulmus parvifolia cultivar list.[permanent dead link]
- Edward F. Gilman and Dennis G. Watson, 'Drake' Chinese Elm
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