Guide botanique
White Oak.
Quercus alba
Prononciation KWER-kus AL-buh
Aussi appelée Stave Oak, White Oak, eastern white oak
The white oak is a majestic, long lived hardwood tree native to eastern North America. It is prized for its sturdy wood and beautiful, rounded canopy that provides excellent shade. These trees are a cornerstone of forest ecosystems and support a wide variety of wildlife.
En un coup d'œil
- Niveau d'entretien
- Facile
- Type de plante
- Deciduous tree
- Lumière
- Full sun
- Lumière en intérieur
- Soleil direct
- Arrosage
- Tous les 7 à 14 jours
- Taille adulte
- 80 to 100 feet
- Croissance
- Moyenne
- Rusticité
- USDA 3 à 9
- Floraison
- Mid to late spring
Entretien
Plant your white oak in a spot with plenty of space for its expansive root system and canopy to grow. Keep an eye out for leaf spots or signs of pests like oak wilt, which can affect the tree's health. Ensure the soil remains well drained to prevent root issues as the tree matures.
- Arrosage
- Young trees need regular deep watering during dry spells to establish a strong root system.
- Engrais
- Apply a slow release fertilizer in early spring if the tree shows signs of slow growth.
- Taille
- Prune during the dormant winter season to remove dead or crossing branches.
- Rempotage
- This tree is not suitable for container gardening long term due to its massive size.
- Sol
- Deep, moist, well drained acidic soil
- pH du sol
- Acidic to neutral
- Température
- -35 à 35°C
- Humidité
- 40 à 70%
Sécurité
- Humains
- The leaves and acorns contain tannins which can cause digestive upset if ingested in large quantities.
- Enfants
- Acorns are a potential choking hazard for small children if left within reach.
- Allergènes de contact
- The bark and leaves are generally safe, but some individuals may experience mild irritation from handling.
- Allergènes aéroportés
- White oak pollen is a significant seasonal allergen that can cause hay fever in sensitive individuals.
- Comestibilité
- Acorns contain high levels of tannins and require leaching before they can be safely consumed by humans.
Comment l'identifier
- Rounded lobes on leaves
- Light gray, scaly bark
- Acorns with warty caps
- Large, spreading canopy structure
- Hauteur
- 15 à 30m
- Envergure
- 15 à 25m
- Feuilles
- green, red, brown, deciduous
- Fleurs
- yellow, green, 0,5 à 1cm
- Fruits
- brown, Autumn
Problèmes courants
- Oak Wilt — A fungal disease that blocks the water conducting vessels of the tree, leading to leaf drop and death.
- Oak Leaf Blister — A fungal infection causing raised, circular spots on the leaves during cool, wet springs.
La cultiver
- Multiplication
- seed
- Quand planter
- Spring, Autumn
Plant white oaks in large open spaces where they can develop their full, majestic canopy without competition.
Bonnes associations
- Flowering dogwood — It thrives in the dappled shade provided by the oak canopy.
- hamamélis d'Amérique — This understory shrub complements the oak in woodland settings.
Espèces similaires
- Quercus macrocarpa — It shares a similar stature but has distinctively fringed acorn caps.
- Quercus montana — It is another large oak that prefers rocky, well drained ridges.
Science
- Famille
- Fagaceae
- Genre
- Quercus
- Ordre
- Fagales
- Classe
- Magnoliopsida
- Région d'origine
- Eastern and central North America.
- Préservation
- This species is widespread and not currently of conservation concern.
It thrives in diverse soil types and is highly adapted to fire prone ecosystems.
- Intérêt pour la faune
- larval host plant, food source for mammals, nesting site
- Pollinisateurs
- abeilles, coléoptères
- Utilisations
- shade tree, timber production, wildlife habitat, landscape specimen
Au fil des saisons
Repères écologiques
- Salinité
- 1/9
- Réaction du sol
- 5/9
- Lumière
- 7/9
- Température
- 5/9
- Humidité
- 5/9
- Nutriments
- 5/9
Taxonomie vérifiée avec le GBIF.
Ce qu'on demande souvent
- How fast does a white oak grow?
- It is a slow to moderate grower, typically adding 30 to 60 centimeters per year.
- Can I plant a white oak near my house?
- No, its massive size and extensive root system make it unsuitable for small yards or close proximity to structures.
D'où vient le nom
The name alba refers to the light, whitish color of the bark, while Quercus is the classical Latin name for oak.
Bon à savoir
- White oaks can live for several hundred years.
- The wood is highly prized for furniture and barrel making.
- The leaves often turn a beautiful wine red in the autumn.
- It is the state tree of Illinois, Connecticut, and Maryland.
Ta plante a mauvaise mine ?
Cette page est un guide général. Pocket Botanist diagnostique les problèmes directement à partir d'une photo de ta plante, adapte l'arrosage à sa luminosité et te prévient quand il faut t'en occuper.
Ce guide a été généré par IA et vérifié avec la taxonomie du GBIF. Il s'agit d'informations générales, et non de conseils horticoles ou vétérinaires. Découvre comment nous concevons ces guides.
