Ulmus 'Amsterdam'
Ulmus 'Amsterdam' | |
---|---|
Ulmus 'Amsterdam' | |
Genus | Ulmus |
Hybrid parentage | 'Bea Schwarz' × U. minor |
Cultivar | 'Amsterdam' |
Origin | Baarn, The Netherlands |
Ulmus 'Amsterdam' is a Dutch cultivar raised at the Huis Groeneveld in Baarn from a crossing of the early cultivar 'Bea Schwarz' with another French U. minor by Hanneke Went in 1942 and introduced by Albert Hoekstra, former director of Amsterdam's horticulture department.[1]
Description
'Amsterdam' is very slender growing in its youth, with rather small, light green leaves. Eventually it becomes a medium-sized tree with a narrow ovate crown. The leaves turn a rich yellow in autumn and remain attached to the tree for a period much longer than is normal for the genus. The tree is also distinguished by its trunk, which widens conspicuously at the base.[1]
- Trunk base
- 'Amsterdam' leaves
Pests and diseases
The tree has a moderate resistance to Dutch elm disease, rated as 3/5.[1]
Cultivation
'Amsterdam' is perceived to be a tree ideally suited to urban locations where trees of small size are preferred. The cultivar has had only a very limited impact on the Dutch townscape, largely restricted to the streets of Amsterdam, notably the Weesperstraat. [1] The tree is little known beyond the Netherlands.
Etymology
Named for the city of Amsterdam.
Accessions
Europe
- Grange Farm Arboretum, Sutton St. James, Spalding, Lincs., UK. Acc. no. 815.
- Sir Harold Hillier Gardens, UK. One specimen bordering Crookhill overflow parking area. Acc. no. 2017.0371
Nurseries
Europe
- Noordplant [1], Glimmen, Netherlands.
References
- ^ a b c d Tijdgat, M. (2020): Ulmus – Gebruikswaarde- en sortimentsonderzoek in de praktijk. Dendroflora Nr. 56-2020, p.73 Koninklijke Vereniging voor Boskoopse Culturen & Nederlandse Dendrologische Vereniging
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- U. alata (Winged elm)
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