A picture of a English Oak

English Oak

Quercus robur

Also known as

Oak, Common Oak, Pedunculate Oak, Black Oak, French Oak, Polish Oak, Slavonian Oak, European Oak, Acorn Tree, Pendunculate oak

Scoville - Quercus robur - JPG2 by Jean-Pol GRANDMONT (CC BY 3.0)

Full Sun
Easy care
Moderate watering
Frost Hardy

H6

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

20m

Max

12m

6m

Min

6m

25 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has no fragrance

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A photo of English Oak

English Oak Overview

Quercus robur is a large, deciduous tree species in the Fagaceae family. It is planted for forestry, producing long-lasting and durable heartwood, that is used in the production of furniture and other interior work. Capable of growing between 20-40m in height and commonly known as English Oak, this species is a national embalm and forms a wide, spreading crown with an open canopy. The bark is smooth and coloured silver-brown, developing a rough, fissured texture with age. Leaves measure approximately 10cm in length, they have 4-5 deep lobes and a smooth margin. This tree is monoecious and thus has both male and female flowers on the same individual plant. The male flowers are arranged in long, hanging catkin structures, these are coloured yellow-green and the female flowers are small and pink, leading onto nuts called acorns. These trees are also valuable in parks and gardens, the acorns form a valuable food resource for pigs, horses, several small mammals and some birds. This tree exhibits attractive autumn colouration, with the foliage turning red-brown in autumn.

Common problems with English Oak

Powdery mildew can be a problem as well as various bract fungi, Oak wilt and honey fungus. In South Africa trees are sprayed from spring to early summer with fungicides to prevent these diseases.

How to harvest English Oak

Acorns can be collected as they drop from the trees in early autumn.

How to propagate English Oak

Seed

The seeds are called acorns, sow as soon as they are ripe.

Grafting

Grafting in late winter.

Special features of English Oak

Attracts birds

Birds including owls and hoopoe build their nests in the soft wood.

Drought resistant

Deep roots allow to withstand dry times.

Hedge plant

Make a beautiful large hedge screen on proporty borders.

Autumn colour

Leaves turn yellow, brown and oranges before they fall.

Attractive leaves

Other uses of English Oak

Specimen. Suitable for coastal conditions.

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