Ulmus 'Urban' Ulmaceae

'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.
Характеристики
Загрузить PDF
Высота
15-20 m
Ширина
10-15m
Крона
round, dark, dense crown
Лист
glossy dark green
Осенний окрас
желтый
Колючки/шипы
None
Ядовитость
неядовитый, обычно
Вид почвы
loamy soil, sandy soil, peaty soil, calcareous soil
Мощение
неустойчив к мощению
Зона зимостойкости
5 (-28,8 до -23,4 °C)
Устойчивость к ветру
good
Прочие виды устойчивости
устойчив к морозам, зона 1 - 6, cустойчив к ветру
Дерево-среда обитания для животных
притягивает бабочек
Применение
аллеи и широкие улицы
Форма
штамбовое дерево
Происхождение
Agricultural Research Service, Ohio, USA, 1976
штамбовое дерево известковые почвы суглинок торфяные почвы песчаные почвы неустойчив к мощению устойчив к морозам (зона 1 - 6) устойчив к ветру 3 высота: менее 6 метров плотная крона зеленый медленнорастущий притягивает бабочек неядовитый (обычно)
Часто задаваемые вопросы
Ulmus 'Urban'

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

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

The leaves of Ulmus 'Urban' turn желтый 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