Ulmus americana 'Princeton' – Ulmus americana 'Princeton'

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Ulmaceae

Ulmus americana 'Princeton' – Ulmus americana 'Princeton'

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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.
Availability
Clear stem (2)
Specifications
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Height
20 m
Width
10-15m
Crown
oval, half-open crown
Bark and branches
twigs brown-green, bark light grey-brown, slightly grooved
Leaf
obovate, green, 5 - 15 cm
Autumn colour
yellow
Flowers
in dense clusters, reddish green, March/April
Fruits
flat winged nutlets, round, green, sometimes slightly red
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
fertile, moist and airy, tolerates limy soil
Soil moisture
suitable for wet soil, withstand short flood
Paving
tolerates paving
Winter hardiness zone
3 (-40,0 to -24,5 °C)
Wind resistance
fairly to good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind
Application
avenues and broad streets
Shape
clearstem tree
Origin
Princeton, NJ, USA, 1922
Clear stem tree calcareous soil loamy soil peaty soil sandy soil tolerates paving resistant to frost (WH 1 - 6) suitable for wet soil withstand short flood can withstand wind oval 1st size , taller than 12 metres half-open crown green orange/red March average growing Conspicuous bloom Attractive autumn colour non-toxic (usually)
Applications and inspiration
Trees for avenues and wide streets
Winter hardiness: different from tree to tree
Frequently asked questions
Ulmus americana 'Princeton'

Ulmus americana 'Princeton' can eventually reach a height of 20 m, depending on the site and climate conditions.

Ulmus americana 'Princeton' is average growing and can eventually reach a height of 20 m, depending on the site and climate conditions.

The leaves of Ulmus americana 'Princeton' turn yellow 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.

Ulmus americana 'Princeton' blooms in march.
General