When young, this tree naturally grows fairly straight and narrowly upwards which means it needs little or no pruning. Later is grows into a large tree with a height of around 20 m and an oval to broad-oval crown. The light grey-brown bark is slightly grooved. The leaf is obovate, 5 - 15 cm long with a leathery structure. The autumn colour is golden-yellow to brown-yellow. The tree was selected in 1922 because of its lovely crown shape. It was only later that ‘Princeton’ was found to have reasonable to strong resistance to Dutch elm disease, at least in the USA. In England it turns out that this cultivar gets ill anyway. It is therefore recommended only to use ‘Princeton’ in areas where the threat of infection is low. Despite the fact that the crown can become somewhat ragged when older, its oval shape makes ‘Princeton’ suitable as an avenue and street tree nonetheless. Unusually hardy.
flat winged nutlets, round, green, sometimes slightly red
Колючки/шипы
None
Ядовитость
неядовитый, обычно
Вид почвы
fertile, moist and airy, tolerates limy soil
Влажность почвы
устойчив к влажным почвам, устойчив к коротким наводнениям
Мощение
устойчив к мощению
Зона зимостойкости
3 (-40,0 до -24,5 °C)
Устойчивость к ветру
fairly to good
Прочие виды устойчивости
устойчив к морозам, зона 1 - 6, cустойчив к ветру
Применение
аллеи и широкие улицы
Форма
штамбовое дерево
Происхождение
Princeton, NJ, USA, 1922
штамбовое деревоизвестковые почвысуглинокторфяные почвыпесчаные почвыустойчив к мощениюустойчив к морозам (зона 1 - 6)устойчив к влажным почвамустойчив к коротким наводнениямустойчив к ветруовальная 1 высота: более 12 метровкрона средней плотностизеленыйоранжевый/красныймартсреднерастущийэффектное цветениепривлекательный осенний окраснеядовитый (обычно)
Ulmus americana 'Princeton' can eventually reach a height of 20 m, depending on the site and climate conditions.
Ulmus americana 'Princeton' is среднерастущий and can eventually reach a height of 20 m, depending on the site and climate conditions.
The leaves of Ulmus americana 'Princeton' turn желтый in autumn.
The right time to plant Ulmus americana 'Princeton' is during the dormancy period. In Western Europe, Ulmus americana 'Princeton' 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.