- Ulmus 'Den Haag'
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Ulmus hybrid
'Den Haag', Southsea Common, UKDetails Hybrid parentage U. pumila × 'Belgica' Cultivar 'Den Haag' Origin The Netherlands The hybrid cultivar Ulmus 'Den Haag' is a Dutch development derived from a crossing of the Siberian Elm Ulmus pumila and the Belgian Elm Ulmus × hollandica 'Belgica' in 1936 by S. G. A. Doorenbos (1891-1980), Director of Public Parks in The Hague. [1].
Contents
Description
The tree is distinguished by its pendent branches, and its foliage, which is creamy-white on emergence but turning lime-green and ultimately deep green by midsummer.[2]
Pests and diseases
Although reputed to be moderately resistant to Dutch elm disease, drought, and frost, the tree has brittle branches, and is vulnerable to Coral-spot Fungus Nectria cinnabarina [3]
Cultivation
The tree remains in commerce in the Netherlands and New Zealand. 'Den Haag' is not known to have been introduced to North America.
Notable trees
The specimen shown growing near the entrance to the Skate Park on Southsea Common, Portsmouth, is the larger of only two known in the UK at 19 m high, 74 cm d.b.h., and currently TROBI Champion.
Etymology
The tree is named for the city of Den Haag (known as The Hague in English).
Synonymy
- Ulmus 'Ieplaan': old (original?) name for Ulmus 'Den Haag'.
- Ulmus pumila 'Den Haag': various authorities.
Accessions
- Europe
- Brighton & Hove City Council, UK, NCCPG elm collection [2]. Large tree in Preston Park.
- Grange Farm Arboretum, Sutton St James, Spalding, Lincs., UK. Acc. no. 819.
- Sir Harold Hillier Gardens, Romsey, Hampshire UK. Acc. no. 2008.0114
Nurseries
- Europe
- Australasia
- Big Trees [4], Nelson, New Zealand
References
Categories:- Elm cultivars
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