Fraxinus excelsior 'Altena' – Fraxinus excelsior 'Altena'

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Oleaceae

Fraxinus excelsior 'Altena' – Fraxinus excelsior 'Altena'

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Moderately fast growing tree with a straight central leader and pyramidal to broad conical crown. The tree branches well when young, producing a dense crown at an early stage. Mature trees are conspicuous for their regularly formed crown. The leaves are a matt, dark green and hardly change colour in autumn. Was selected around 1952 from a road planting of F. excelsior, then about 20 years old. The tree was first marketed around 1966 under the provisional name “No. 17”. This was later changed to ‘Altena’. Good street, avenue and park tree. Also highly suitable for use in open spaces. Prefers fertile, fairly moist soil: cannot tolerate paved surfaces. Is rather susceptible to Pseudomonas savastanoi, but not very susceptible to canker. Seems not particularly sensitive to ash die-back, but research into this remains necessary. Tolerates a lot of wind.
Availability
Clear stem (3)
Specifications
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Height
20 - 25 m
Width
10-15m
Crown
pyramidal to broad conical, dark, dense crown
Bark and branches
grey-brown, regular shallow grooves
Leaf
imparipinnate, 9 - 11 leaflets, matt green, feathered leaf
Flowers
inconspicuous panicles, april
Fruits
few
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
moist, fertile
Soil moisture
suitable for wet soil, withstand short flood
Paving
tolerates partial paving
Winter hardiness zone
4 (-34,4 to -28,9 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind, resistant to de-icing salt
Application
avenues and broad streets, coastal areas, industrial areas
Shape
clearstem tree, multi-stem treem
Origin
J.C. van ’t Westeinde, ’s-Heer Abtskerke, Netherlands, 1966
Clear stem tree Multi-stem tree calcareous soil clay soil loamy soil sandy soil tolerates partial paving resistant to de-icing salt resistant to frost (WH 1 - 6) suitable for wet soil withstand short flood can withstand wind broad conical 1st size , taller than 12 metres dense crown green yellowgreen late sprout average growing Feathered leaf non-toxic (usually)
Frequently asked questions
Fraxinus excelsior 'Altena'

Fraxinus excelsior 'Altena' can eventually reach a height of 20 - 25 m, depending on the site and climate conditions.

Fraxinus excelsior 'Altena' is average growing and can eventually reach a height of 20 - 25 m, depending on the site and climate conditions.

The right time to plant Fraxinus excelsior 'Altena' is during the dormancy period. In Western Europe, Fraxinus excelsior 'Altena' 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.

Fraxinus excelsior 'Altena' blooms in april.
General