English oak.

En un coup d'œil

Niveau d'entretien

Moyenne

Type de plante

Deciduous tree

Lumière

Full sun

Lumière en intérieur

Soleil direct

Arrosage

Tous les 7 à 14 jours

Taille adulte

120 feet

Croissance

Moyenne

Rusticité

USDA 4 à 8

Floraison

Mid to late spring

Entretien

Plant this tree in a spot with plenty of space for its wide root system to spread. Keep an eye out for powdery mildew on the leaves during humid spells. Ensure the soil remains moist but well drained while the tree establishes itself.

Arrosage

Young trees need regular watering to establish their roots, but mature oaks are quite drought tolerant.

Engrais

Apply a balanced, slow release fertilizer in early spring to support healthy growth.

Taille

Prune during the dormant winter season to remove dead or crossing branches.

Rempotage

This tree is generally not suitable for container life long term, but young specimens can be moved up as they grow.

Sol

Deep, fertile, slightly acidic loam

pH du sol

6.0 to 7.5

Température

-35 à 35°C

Humidité

40 à 80%

Sécurité

Humains

The leaves and acorns contain tannins which can cause digestive upset if ingested in large quantities.

Enfants

Acorns are a choking hazard for small children and should be kept out of reach.

Allergènes de contact

Contact with the bark or leaves may cause mild skin irritation in sensitive individuals.

Allergènes aéroportés

The windborne pollen is a significant allergen for many people during the spring season.

Comestibilité

Acorns contain tannins that must be leached thoroughly before they are safe for human consumption.

Comment l'identifier

• Deeply lobed, dark green leaves
• Acorns with short stalks
• Rugged, deeply furrowed grey bark
• Broad, spreading crown at maturity

Hauteur

20 à 40m

Envergure

15 à 30m

Feuilles

green, deciduous

Fleurs

yellow, green, 0,5 à 1cm

Fruits

brown, Autumn

Problèmes courants

• Oak mildew — A fungal infection that causes a white powdery coating on the leaves.
• Oak processionary moth — Caterpillars that feed on leaves and possess irritating hairs.

La cultiver

Multiplication

seed

Quand planter

Spring, Autumn

Plant spring bulbs beneath the canopy to take advantage of the light before the leaves fully emerge.

Bonnes associations

• Bluebell — They naturally thrive in the dappled shade provided by the oak canopy.
• Noisetier commun — They often grow together in woodland settings as part of a healthy understory.

Espèces similaires

• Quercus petraea — It is very similar in appearance but has stalkless acorns.

Science

Famille

Fagaceae

Genre

Quercus

Ordre

Fagales

Classe

Magnoliopsida

Région d'origine

Europe, Western Asia, and North Africa.

Préservation

This species is widespread and not currently of conservation concern.

It thrives in deep, fertile soils and forms extensive symbiotic relationships with mycorrhizal fungi.

Intérêt pour la faune

larval host plant, food source for birds and mammals

Pollinisateurs

abeilles, coléoptères

Utilisations

timber production, landscape specimen, wildlife habitat

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

How fast does it grow?

It is a slow to moderate grower, especially in its early years.

Can I grow it in a small garden?

It is generally too large for small gardens due to its massive mature size.

D'où vient le nom

The species name robur is Latin for strength or oak, reflecting the tree's sturdy nature.

Bon à savoir

• These trees can live for over 1000 years.
• The wood has been used for centuries to build ships and furniture.
• An individual tree can produce thousands of acorns in a good year.