Ulmus 'Urban' – Ulmus 'Urban'

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Ulmaceae

Ulmus 'Urban' – Ulmus 'Urban'

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'Urban' is a large tree with a round crown that grows 15-20 m tall. The tree grows quite slowly and the crown is dense and somewhat irregular in shape. The leaves are ovate and a nice glossy dark green. In autumn, the leaves turn a deep golden yellow, often two weeks earlier than in other elms. The autumn colour is visible for several weeks. 'Urban' does not grow very fast, and does not require much maintenance. The tree prefers nutrient-rich soil, but also grows reasonably well in poorer and drier soils. However, the soil must be sufficiently permeable; on heavier clay soil, the roots are susceptible to root rot and more root suckers will grow. Resistance to Dutch elm disease is moderate. Because of its crown width, 'Urban' is suitable for use in wide green spaces and parks. Wind resistance is good.
'Urban' is an American cultivar created from a cross between the experimental U. ×hollandica Clone 148 and U. pumila. Clone 148, created from a cross between U. ×hollandica 'Vegeta' and U. minor Clone 28, was sent to the USA in 1952. The Agricultural Research Service in Delaware, Ohio, introduced 'Urban' in 1976. Hardiness zone 5.
Availability
Clear stem (3)
Specifications
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Height
15-20 m
Width
10-15m
Crown
round, dark, dense crown
Leaf
glossy dark green
Autumn colour
yellow
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
loamy soil, sandy soil, peaty soil, calcareous soil
Paving
tolerates no paving
Winter hardiness zone
5 (-28,8 to -23,4 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind
Fauna tree
valuable for butterflies
Application
avenues and broad streets
Shape
clearstem tree
Origin
Agricultural Research Service, Ohio, USA, 1976
Clear stem tree calcareous soil loamy soil peaty soil sandy soil tolerates no paving resistant to frost (WH 1 - 6) can withstand wind 3rd size, smaller than 6 metres dense crown green slow growing valuable for butterflies non-toxic (usually)
Frequently asked questions
Ulmus 'Urban'

Ulmus 'Urban' can eventually reach a height of 15-20 m, depending on the site and climate conditions.

Ulmus 'Urban' is slow growing and can eventually reach a height of 15-20 m, depending on the site and climate conditions.

The leaves of Ulmus 'Urban' turn yellow in autumn.

The right time to plant Ulmus 'Urban' is during the dormancy period. In Western Europe, Ulmus 'Urban' with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

Ulmus 'Urban' blooms in .
General