Quercus suber – Cork oak

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Fagaceae

Quercus suber – Cork oak

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A very familiar evergreen oak from the western Mediterranean. Cultivated from antiquity for its cork, the cork being harvested once every seven years. The irregular crown starts off oval but later becomes broader, more or less rounded. The soft bark is greyish-brown and only develops deep grooves after the fourth year. Once the bark has been harvested, the trunk is a fiery red colour. The evergreen serrated leaves are oval to ovoid and glossy dark green. On the underside they are felt-like and greyish-white. The elongated ovoid acorns grow singly or in pairs and are 1.5 - 3 cm in size. They are one-third or half enclosed by the cupule. Q. suber can flower practically the entire year, which means that the acorns are visible most of the year. Quercus suber is an evergreen oak that has been cultivated from antiquity as a supplier of cork. The corky bark may be harvested only when the trunk has a diameter of approx. 60 cm.
Our trees can only be planted when they don't have any leaves. Due to the this we will start delivering again from November 2024.
Availability
Clear stem (5) Multi-stem (4)
Size
Root ball size
Packaging
Amount
Delivery period
300/350 multistem
Wire rootballed
Available from november! Pre-order now!
Root ball size
Packaging
Wire rootballed
Delivery period
Available from november! Pre-order now!
Stock
Available
400/450 multistem
Wire rootballed
Available from november! Pre-order now!
Root ball size
Packaging
Wire rootballed
Delivery period
Available from november! Pre-order now!
Stock
Limited stock
450/500 multistem
Wire rootballed
Available from november! Pre-order now!
Root ball size
Packaging
Wire rootballed
Delivery period
Available from november! Pre-order now!
Stock
Limited stock
500/600 multistem
Wire rootballed
Available from november! Pre-order now!
Root ball size
Packaging
Wire rootballed
Delivery period
Available from november! Pre-order now!
Stock
Limited stock
Specifications
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Height
6 - 15 (20) m
Crown
irregular, more or less rounded, half-open crown, capricious growing
Bark and branches
light greyish-brown, deep grooves with a great deal of cork
Leaf
oval to ovoid, lobed, dark green, 3 - 9 cm, evergreen
Flowers
yellow ♂ catkins
Fruits
ovoid acorn, 1.5 - 3 cm long
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
makes few demands, can take dry conditions
Soil moisture
suitable for dry soil
Paving
tolerates no paving
Winter hardiness zone
8b (-9,4,5 to -6,7 °C)
Wind resistance
fairly
Other resistances
resistant to de-icing salt
Application
tree containers, roof gardens, industrial areas
Shape
clearstem tree, multi-stem treem
Origin
western Mediterranean, especially Spain and Portugal
Clear stem tree Multi-stem tree calcareous soil clay soil loamy soil sandy soil tolerates no paving resistant to de-icing salt suitable for dry soil 1st size , taller than 12 metres half-open crown green yellow average growing all species non-toxic (usually) Capricious growing playground tree
Applications and inspiration
Evergreen trees and shrubs: which trees are evergreen?
Related projects
Private garden with large trees
Frequently asked questions
Quercus suber

Quercus suber can eventually reach a height of 6 - 15 (20) m, depending on the site and climate conditions.

Quercus suber is average growing and can eventually reach a height of 6 - 15 (20) m, depending on the site and climate conditions.

The right time to plant Quercus suber is during the dormancy period. In Western Europe, Quercus suber 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 suber blooms in april.
General