| Ulmus hybrid | |
|---|---|
'Den Haag', Southsea Common, UK |
|
| Details | |
| 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 |
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]
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]
The tree remains in commerce in the Netherlands and New Zealand. 'Den Haag' is not known to have been introduced to North America.
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.
The tree is named for the city of Den Haag (known as The Hague in English).