Quercus 'Columna' – Quercus 'Columna'

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Fagaceae

Quercus 'Columna' – Quercus 'Columna'

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A columnar oak that grows more slowly than Q. robur 'Fastigiata'. The branches spread out somewhat in a fan shape so that the crown ends up a narrow rhombic shape. Only old trunks develop shallow grooves. Young twigs are greenish-brown. The tough leathery leaves are yellowish-green when they emerge. They are narrow, elongated and lobed, more irregular in shape than those of Q. petraea. 'Columna' has the attractive characteristic of being very resistant to mildew. The ovoid acorns grow together in groups and are one-third or one-quarter enclosed in the cupule. The tree also grows in dry soil provided that it is not too poor. Q. 'Columna' category includes trees with various manners of growth, from strictly columnar to somewhat drooping. There is a very narrow specimen in the Trompenburg Aboretum in Rotterdam (NL) that sometimes serves as mother plant.

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Specifications
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Height
16 - 20 m
Width
3-5m
Crown
columnar, later with branches spreading out in a fan, half-open crown
Bark and branches
greyish-brown, remains smooth for a long time
Leaf
narrow, elongated, shallow and irregular lobes, greyish-green, 8 - 12 cm
Autumn colour
yellow
Flowers
yellowish-brown ♂ catkins, 5 - 8 cm long, May
Fruits
acorns, ovoid, 2 - 2.5 cm long
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
nutritious, can take dry conditions
Soil moisture
suitable for dry soil
Paving
tolerates no paving
Winter hardiness zone
5a (-28,8 to -26,1 °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, narrow streets, industrial areas
Shape
clearstem tree, feathered tree
Origin
Hesse, Germany, 1935
Synonyms
Quercus petraea 'Columna'
Clear stem tree feathered tree calcareous soil loamy soil sandy soil tolerates no paving resistant to de-icing salt resistant to frost (WH 1 - 6) suitable for dry soil can withstand wind columnar 1st size , taller than 12 metres half-open crown green yellow average growing Attractive autumn colour non-toxic (usually)
Frequently asked questions
Quercus 'Columna'

Quercus 'Columna' can eventually reach a height of 16 - 20 m, depending on the site and climate conditions.

Quercus 'Columna' is average growing and can eventually reach a height of 16 - 20 m, depending on the site and climate conditions.

The leaves of Quercus 'Columna' turn yellow in autumn.

The right time to plant Quercus 'Columna' is during the dormancy period. In Western Europe, Quercus 'Columna' 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.

Quercus 'Columna' blooms in may.
General

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Yes, for trees with a size of 50-60 cm girth or larger, additional delivery charges apply due to the need for specialised transport. These costs will be calculated separately and shared with you after your order is placed. We will contact you to discuss the transport options and costs.

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